2001 DODGE RAM Fuel pump relay
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IGNITION CONTROL
TABLE OF CONTENTS
page page
IGNITION CONTROL
DESCRIPTION............................1
OPERATION.............................1
SPECIFICATIONS.........................2
AUTOMATIC SHUT DOWN RELAY
DESCRIPTION............................3
OPERATION.............................3
DIAGNOSIS AND TESTING..................3
ASD AND FUEL PUMP RELAYS.............3
REMOVAL...............................4
INSTALLATION............................5
CAMSHAFT POSITION SENSOR
DESCRIPTION............................5
OPERATION.............................5
REMOVAL...............................7
INSTALLATION............................8
DISTRIBUTOR
DESCRIPTION...........................10
OPERATION.............................11
REMOVAL..............................11
INSTALLATION...........................11
DISTRIBUTOR CAP
DIAGNOSIS AND TESTING.................12
DISTRIBUTOR CAP.....................12DISTRIBUTOR ROTOR
DIAGNOSIS AND TESTING.................13
DISTRIBUTOR ROTOR...................13
IGNITION COIL
DESCRIPTION...........................13
OPERATION.............................14
REMOVAL..............................14
INSTALLATION...........................15
SPARK PLUG
DESCRIPTION...........................16
OPERATION.............................16
DIAGNOSIS AND TESTING.................16
SPARK PLUG CONDITIONS...............16
REMOVAL..............................18
CLEANING..............................19
INSTALLATION...........................19
SPARK PLUG CABLE
DESCRIPTION...........................19
OPERATION.............................19
DIAGNOSIS AND TESTING.................19
SPARK PLUG CABLES...................19
REMOVAL..............................20
INSTALLATION...........................20
IGNITION CONTROL
DESCRIPTION - 8.0L V-10
The ignition system used on the 8.0L V±10 engine
does not use a conventional mechanical distributor.
The system will be referred to as a distributor-less
ignition system.
DESCRIPTION - V-6/V-8
The ignition systems used on the 3.9L V-6, the
5.2L V-8 and the 5.9L V-8 are basically identical.
OPERATION - 8.0L V-10
The ignition coils are individually fired, but each
coil is a dual output. Refer to Ignition Coil for addi-
tional information.
The ignition system is controlled by the Powertrain
Control Module (PCM) on all engines.
The ignition system consists of:
²Spark Plugs
²Ignition Coil packs containing individual coils²Secondary Ignition Cables
²Powertrain Control Module (PCM)
²Also to be considered part of the ignition system
are certain inputs from the Crankshaft Position,
Camshaft Position, Throttle Position and MAP Sen-
sors
OPERATION - V-6/V-8
The ignition system is controlled by the Powertrain
Control Module (PCM) on all engines.
The ignition system consists of:
²Spark Plugs
²Ignition Coil
²Secondary Ignition Cables
²Distributor (contains rotor and camshaft position
sensor)
²Powertrain Control Module (PCM)
²Also to be considered part of the ignition system
are certain inputs from the Crankshaft Position,
Camshaft Position, Throttle Position and MAP Sen-
sors
BR/BEIGNITION CONTROL 8I - 1
Page 540 of 2889
SPARK PLUG CABLE RESISTANCE
MINIMUM MAXIMUM
250 Ohms Per Inch 1000 Ohms Per Inch
3000 Ohms Per Foot 12,000 Ohms Per Foot
SPARK PLUGS
ENGINE PLUG TYPE ELECTRODE GAP
3.9L V-6 RC12LC4 1.01 mm (.040 in.)
5.2L/5.9L V-8 RC12LC4 1.01 mm (.040 in.)
8.0L V-10 QC9MC4 1.14 mm (.045 in.)
IGNITION COIL RESISTANCEÐ3.9L/5.2L/5.9L ENGINES
COIL MANUFACTURERPRIMARY RESISTANCE
21-27ÉC (70-80ÉF)SECONDARY RESISTANCE 21-27ÉC
(70-80ÉF)
Diamond 0.97 - 1.18 Ohms 11,300 - 15,300 Ohms
Toyodenso 0.95 - 1.20 Ohms 11,300 - 13,300 Ohms
IGNITION COIL RESISTANCEÐ8.0L V-10
ENGINE
Primary Resistance: 0.53-0.65 Ohms. Test across the
primary connector. Refer to text for test procedures.
Secondary Resistance: 10.9-14.7K Ohms. Test
across the individual coil towers. Refer to text for test
procedures.
IGNITION TIMING
Ignition timing is not adjustable on any engine.
AUTOMATIC SHUT DOWN
RELAY
DESCRIPTION - PCM OUTPUT
The 5±pin, 12±volt, Automatic Shutdown (ASD)
relay is located in the Power Distribution Center
(PDC). Refer to label on PDC cover for relay location.
OPERATION - PCM OUTPUT
The ASD relay supplies battery voltage (12+ volts)
to the fuel injectors and ignition coil(s). With certain
emissions packages it also supplies 12±volts to the
oxygen sensor heating elements.
The ground circuit for the coil within the ASD
relay is controlled by the Powertrain Control Module
(PCM). The PCM operates the ASD relay by switch-
ing its ground circuit on and off.The ASD relay will be shut±down, meaning the
12±volt power supply to the ASD relay will be de-ac-
tivated by the PCM if:
²the ignition key is left in the ON position. This
is if the engine has not been running for approxi-
mately 1.8 seconds.
²there is a crankshaft position sensor signal to
the PCM that is lower than pre-determined values.
OPERATION - ASD SENSE - PCM INPUT
A 12 volt signal at this input indicates to the PCM
that the ASD has been activated. The relay is used to
connect the oxygen sensor heater element, ignition
coil and fuel injectors to 12 volt + power supply.
This input is used only to sense that the ASD relay
is energized. If the Powertrain Control Module
(PCM) does not see 12 volts at this input when the
ASD should be activated, it will set a Diagnostic
Trouble Code (DTC).
DIAGNOSIS AND TESTING - ASD AND FUEL
PUMP RELAYS
The following description of operation and
tests apply only to the Automatic Shutdown
(ASD) and fuel pump relays. The terminals on the
bottom of each relay are numbered. Two different
types of relays may be used, (Fig. 1) or (Fig. 2).
²Terminal number 30 is connected to battery volt-
age. For both the ASD and fuel pump relays, termi-
nal 30 is connected to battery voltage at all times.
BR/BEIGNITION CONTROL 8I - 3
IGNITION CONTROL (Continued)
Page 541 of 2889
²The PCM grounds the coil side of the relay
through terminal number 85.
²Terminal number 86 supplies voltage to the coil
side of the relay.
²When the PCM de-energizes the ASD and fuel
pump relays, terminal number 87A connects to termi-
nal 30. This is the Off position. In the off position,
voltage is not supplied to the rest of the circuit. Ter-
minal 87A is the center terminal on the relay.²When the PCM energizes the ASD and fuel
pump relays, terminal 87 connects to terminal 30.
This is the On position. Terminal 87 supplies voltage
to the rest of the circuit.
The following procedure applies to the ASD and
fuel pump relays.
(1) Remove relay from connector before testing.
(2) With the relay removed from the vehicle, use
an ohmmeter to check the resistance between termi-
nals 85 and 86. The resistance should be 75 ohms +/-
5 ohms.
(3) Connect the ohmmeter between terminals 30
and 87A. The ohmmeter should show continuity
between terminals 30 and 87A.
(4) Connect the ohmmeter between terminals 87
and 30. The ohmmeter should not show continuity at
this time.
(5) Connect one end of a jumper wire (16 gauge or
smaller) to relay terminal 85. Connect the other end
of the jumper wire to the ground side of a 12 volt
power source.
(6) Connect one end of another jumper wire (16
gauge or smaller) to the power side of the 12 volt
power source.Do not attach the other end of the
jumper wire to the relay at this time.
WARNING: DO NOT ALLOW OHMMETER TO CON-
TACT TERMINALS 85 OR 86 DURING THIS TEST.
DAMAGE TO OHMMETER MAY RESULT.
(7) Attach the other end of the jumper wire to
relay terminal 86. This activates the relay. The ohm-
meter should now show continuity between relay ter-
minals 87 and 30. The ohmmeter should not show
continuity between relay terminals 87A and 30.
(8) Disconnect jumper wires.
(9) Replace the relay if it did not pass the continu-
ity and resistance tests. If the relay passed the tests,
it operates properly. Check the remainder of the ASD
and fuel pump relay circuits. Refer to 8, Wiring Dia-
grams.
REMOVAL
The ASD relay is located in the Power Distribution
Center (PDC) (Fig. 3). Refer to label on PDC cover
for relay location.
(1) Remove PDC cover.
(2) Remove relay from PDC.
(3) Check condition of relay terminals and PDC
connector terminals for damage or corrosion. Repair
if necessary before installing relay.
(4) Check for pin height (pin height should be the
same for all terminals within the PDC connector).
Repair if necessary before installing relay.
Fig. 1 ASD and Fuel Pump Relay TerminalsÐType 1
TERMINAL LEGEND
NUMBER IDENTIFICATION
30 COMMON FEED
85 COIL GROUND
86 COIL BATTERY
87 NORMALLY OPEN
87A NORMALLY CLOSED
Fig. 2 ASD and Fuel Pump Relay TerminalsÐType 2
TERMINAL LEGEND
NUMBER IDENTIFICATION
30 COMMON FEED
85 COIL GROUND
86 COIL BATTERY
87 NORMALLY OPEN
87A NORMALLY CLOSED
8I - 4 IGNITION CONTROLBR/BE
AUTOMATIC SHUT DOWN RELAY (Continued)
Page 542 of 2889
INSTALLATION
The ASD relay is located in the Power Distribution
Center (PDC) (Fig. 3). Refer to label on PDC cover
for relay location.
(1) Install relay to PDC.
(2) Install cover to PDC.
CAMSHAFT POSITION
SENSOR
DESCRIPTION - DIESEL
The three-wire Camshaft Position Sensor (CMP) is
located below the fuel injection pump (Fig. 4). It is
attached to the back of the timing gear cover hous-
ing.
DESCRIPTION - 3.9L/5.2L/5.9L
The Camshaft Position (CMP) sensor is located in
the distributor.
DESCRIPTION - 8.0L
The Camshaft Position (CMP) sensor is located on
the timing chain case/cover on the left-front side of
the engine (Fig. 5).
OPERATION - DIESEL
The Camshaft Position Sensor (CMP) performs
multiple functions. One function is to detect engine
speed (rpm). Another function is to relate crankshaft
position and Top Dead Center (TDC) of the number 1
cylinder. Because the CMP is now used to relate
crankshaft position,the Crankshaft Position Sen-
sor (CKP) is no longer used.The CMP (Fig. 6) contains a hall effect device
called a sync signal generator to generate a sync sig-
nal.
The CMP uses three wires (circuits) for operation.
One wire supplies a 5±volt signal from the Engine
Control Module (ECM). Another wire supplies a sen-
sor ground. The third wire supplies a signal back to
the ECM relating engine speed and crankshaft posi-
tion.
Fig. 3 Power Distribution Center (PDC)
1 - POWER DISTRIBUTION CENTER (PDC)
Fig. 4 Camshaft Position Sensor (CMP) Location
1 - CAMSHAFT POSITION SENSOR (CMP)
2 - BOTTOM OF FUEL INJECTION PUMP
Fig. 5 CMP Sensor LocationÐ8.0L V-10 Engine
1 - CAMSHAFT POSITION SENSOR
2 - MOUNTING BOLT
3 - TIMING CHAIN CASE/COVER
BR/BEIGNITION CONTROL 8I - 5
AUTOMATIC SHUT DOWN RELAY (Continued)
Page 756 of 2889
8W-02 COMPONENT INDEX
Component Page
4WD Switch.......................... 8W-31
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C-Heater Control.................... 8W-42
A/C Heater Temperature Select........... 8W-42
A/C High Pressure Switch............... 8W-42
A/C Low Pressure Switch................ 8W-42
Accelerator Pedal Position Sensor......... 8W-30
Aftermarket Center High Mounted
Stop Lamp......................... 8W-51
Aftermarket Trailer Tow Connector........ 8W-54
Airbag Control Module.................. 8W-43
Ambient Temperature Sensor............ 8W-49
Ash Receiver Lamp.................... 8W-44
Automatic Day/Night Mirror............. 8W-49
Automatic Shut Down Relay............. 8W-30
Auxiliary Battery...................... 8W-20
Back-Up Lamp Switch.................. 8W-51
Back-Up Lamps....................... 8W-51
Battery Temperature Sensor............. 8W-30
Battery............................. 8W-20
Blend Door Actuator................... 8W-42
Blower Motor Relay.................... 8W-42
Blower Motor Resistor Block............. 8W-42
Blower Motor......................... 8W-42
Brake Lamp Switch.................... 8W-51
Brake Pressure Switch............... 8W-34, 35
Bypass Jumper....................... 8W-21
Camshaft Position Sensor............... 8W-30
Capacitor......................... 8W-10, 30
Cargo Lamps......................... 8W-44
Center High Mounted Stop Lamps........ 8W-51
Center Identification Lamp.............. 8W-50
Central Timer Module.................. 8W-45
Cigar Lighter......................... 8W-41
Circuit Breakers...................... 8W-12
Clockspring.................. 8W-33, 41, 43, 47
Clutch Pedal Position Switch............. 8W-21
Combination Flasher................... 8W-52
Controller Antilock Brake............ 8W-34, 35
Crankshaft Position Sensor.............. 8W-30
Cummins Bus........................ 8W-18
Cup Holder Lamp..................... 8W-44
Cylinder Lock Switches................ 8W-39
Data Link Connector................... 8W-18
Daytime Running Lamp Module.......... 8W-50
Dome Lamp.......................... 8W-44
Door Ajar Switches.................... 8W-45
Door Lock Motors..................... 8W-61
Door Window/Lock Switches.......... 8W-60, 61
Driver Airbag......................... 8W-43
Duty Cycle EVAP/Purge Solenoid......... 8W-30Component Page
Electric Brake Provision................ 8W-54
Engine Control Module.............. 8W-30, 70
Engine Coolant Temperature Sensor....... 8W-30
Engine Oil Pressure Sensor.............. 8W-30
Engine Starter Motor Relay.............. 8W-21
Engine Starter Motor................... 8W-21
Fender Lamp......................... 8W-51
Fog Lamp Indicator.................... 8W-50
Fog Lamp Relay....................... 8W-50
Fog Lamp............................ 8W-50
Fuel Heater Relay..................... 8W-30
Fuel Heater.......................... 8W-30
Fuel Injection Pump................... 8W-30
Fuel Injectors......................... 8W-30
Fuel Transfer Pump.................... 8W-30
Fuses (JB)........................... 8W-12
Fuses (PDC).......................... 8W-10
Fusible Link....................... 8W-20, 30
Generator............................ 8W-20
Glove Box Lamp And Switch............. 8W-44
Grounds............................. 8W-15
Headlamp Beam Select Switch........... 8W-50
Headlamp Switch...................... 8W-50
Headlamp........................... 8W-50
Heated Mirror Relay................... 8W-62
Heated Mirror Switch.................. 8W-62
Heated Seat Cushions.................. 8W-63
Heated Seat Relay..................... 8W-12
Heated Seat Switches.................. 8W-63
High Beam Indicator................... 8W-40
High Note Horn....................... 8W-41
Horn Relay.......................... 8W-41
Horn Switch.......................... 8W-41
Idle Air Control Motor.................. 8W-30
Ignition Coil 4-Pack.................... 8W-30
Ignition Coil 6-Pack.................... 8W-30
Ignition Coil.......................... 8W-30
Ignition Switch....................... 8W-10
Instrument Cluster.................... 8W-40
Intake Air Heater Relays................ 8W-30
Intake Air Heater..................... 8W-30
Intake Air Temperature Sensor........... 8W-30
Intermittent Wiper Switch............... 8W-53
Joint Connectors . . 8W-10, 12, 15, 30, 31, 34, 35, 40,
44, 45, 51, 53, 70
Junction Block........................ 8W-12
Leak Detection Pump.................. 8W-30
License Lamp......................... 8W-51
Low Note Horn....................... 8W-41
Lumbar Motors....................... 8W-63
Manifold Absolute Pressure Sensor........ 8W-30
Manifold Air Pressure Sensor............ 8W-30
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1
Page 757 of 2889
Component Page
Map Lamps.......................... 8W-49
Outboard Clearance Lamp............... 8W-50
Outboard Headlamp................... 8W-50
Outboard Identification Lamp............ 8W-50
Output Speed Sensor................... 8W-31
Overdrive Switch...................... 8W-31
Overhead Console..................... 8W-49
Oxygen Sensors....................... 8W-30
Park Brake Switch.................. 8W-40, 50
Park/Neutral Position Switch.......... 8W-30, 51
Park/Turn Signal Lamp................. 8W-52
Passenger Airbag On/Off Switch.......... 8W-43
Passenger Airbag...................... 8W-43
Power Distribution Center............... 8W-10
Power Mirror Switch................... 8W-62
Power Mirror......................... 8W-62
Power Outlet......................... 8W-41
Power Seat Front Vertical Motors......... 8W-63
Power Seat Horizontal Motors............ 8W-63
Power Seat Rear Vertical Motor........... 8W-63
Power Seat Switch..................... 8W-63
Power Window Motors.................. 8W-60
Powertrain Control Module.............. 8W-30
PTO Switch.......................... 8W-30
Quad High Beam Relay................. 8W-50
Radio Choke Relay..................... 8W-47Component Page
Radio............................... 8W-47
Remote Radio Switch................... 8W-47
Seat Belt Switch...................... 8W-40
Seat Heat Interface Module.............. 8W-63
Security Relay........................ 8W-39
Speakers............................ 8W-47
Speed Control Servo................... 8W-33
Speed Control Switch................... 8W-33
Splice Information..................... 8W-70
Tail/Stop/Turn Signal Lamp.............. 8W-51
Tailgate Lamp........................ 8W-51
Throttle Position Sensor................ 8W-30
Trailer Tow Connector.................. 8W-54
Trailer Tow Relay...................... 8W-54
Transmission Control Relay.............. 8W-31
Transmission Solenoid Assembly.......... 8W-31
Turn Signal/Hazard Switch.............. 8W-52
Underhood Lamp...................... 8W-44
Visor/Vanity Lamp..................... 8W-44
Washer Fluid Level Switch.............. 8W-40
Water In Fuel Sensor................... 8W-30
Wheel Speed Sensors................ 8W-34, 35
Windshield Washer Pump............... 8W-53
Wiper Motor Relay..................... 8W-53
Wiper Motor.......................... 8W-53
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1
Page 758 of 2889
8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch Relay.......... 8W-10-27
A/C Compressor Clutch............... 8W-10-27
Aftermarket Center High Mounted
Stop Lamp....................... 8W-10-13
Aftermarket Trailer Tow Connector...... 8W-10-21
Automatic Shut Down Relay......... 8W-10-14, 20
Auxiliary Battery..................... 8W-10-8
Battery............................ 8W-10-8
Blower Motor Relay.................. 8W-10-23
Blower Motor....................... 8W-10-23
Brake Lamp Switch.................. 8W-10-13
Capacitor.......................... 8W-10-16
Center High Mounted Stop Lamp No. 1 . . . 8W-10-13
Center High Mounted Stop Lamp No. 2 . . . 8W-10-13
Central Timer Module C1............. 8W-10-22
Central Timer Module C2............. 8W-10-26
Circuit Breaker 2.................... 8W-10-10
Clockspring........................ 8W-10-26
Combination Flasher................. 8W-10-13
Controller Antilock Brake............. 8W-10-23
Daytime Running Lamp Module........ 8W-10-25
Electric Brake Provision............ 8W-10-13, 21
Engine Control Module............... 8W-10-12
Engine Starter Motor Relay............ 8W-10-23
Engine Starter Motor................. 8W-10-23
Fog Lamp Relay..................... 8W-10-25
Fuel Heater Relay................... 8W-10-20
Fuel Heater........................ 8W-10-20
Fuel Injection Pump.................. 8W-10-12
Fuel Injector No. 1................ 8W-10-15, 16
Fuel Injector No. 2................ 8W-10-15, 16
Fuel Injector No. 3................ 8W-10-15, 16
Fuel Injector No. 4................ 8W-10-15, 16
Fuel Injector No. 5................ 8W-10-15, 16
Fuel Injector No. 6................ 8W-10-15, 16
Fuel Injector No. 7................ 8W-10-15, 16
Fuel Injector No. 8................ 8W-10-15, 16
Fuel Injector No. 9................... 8W-10-16
Fuel Injector No. 10.................. 8W-10-16
Fuel Pump Module................... 8W-10-11
Fuel Pump Relay................. 8W-10-11, 12
Fuse 1 (JB)........................ 8W-10-10
Fuse 1 (PDC)..................... 8W-10-10, 8
Fuse 2 (PDC).................. 8W-10-8, 10, 22
Fuse 3 (PDC).................. 8W-10-8, 11, 12
Fuse 4 (JB)........................ 8W-10-10
Fuse 4 (PDC)..................... 8W-10-13, 8
Fuse 5 (PDC)..................... 8W-10-13, 8
Fuse 6 (PDC).................. 8W-10-14, 20, 8
Fuse 7 (PDC)..................... 8W-10-20, 8
Fuse 8 (PDC)..................... 8W-10-21, 8
Fuse 9 (PDC)..................... 8W-10-23, 8
Fuse 10 (PDC).................... 8W-10-22, 8
Fuse 11 (PDC).................... 8W-10-23, 8
Fuse 12 (JB)....................... 8W-10-10
Fuse 12 (PDC).................... 8W-10-23, 8
Fuse 13 (JB)....................... 8W-10-10Component Page
Fuse 14 (JB)....................... 8W-10-10
Fuse B (PDC)..................... 8W-10-24, 9
Fuse C (PDC)..................... 8W-10-24, 9
Fuse E (PDC)..................... 8W-10-24, 9
Fuse F (PDC)..................... 8W-10-24, 9
Fuse G (PDC)..................... 8W-10-25, 9
Fuse GEN (PDC).................. 8W-10-27, 8
Fuse H (PDC).................... 8W-10-26, 9
Fuse I (PDC)..................... 8W-10-26, 9
Fuse J (PDC)..................... 8W-10-27, 9
Fuse K (PDC)..................... 8W-10-14, 9
Fuse L (PDC)..................... 8W-10-27, 9
G201............................. 8W-10-22
Generator......................... 8W-10-27
Headlamp Beam Select Switch.......... 8W-10-25
Headlamp Switch.................... 8W-10-24
High Note Horn..................... 8W-10-26
Horn Relay...................... 8W-10-26, 9
Ignition Coil 4-Pack.................. 8W-10-16
Ignition Coil 6-Pack.................. 8W-10-16
Ignition Coil........................ 8W-10-15
Ignition Switch................... 8W-10-10, 22
Joint Connector No. 1.............. 8W-10-25, 26
Joint Connector No. 2..... 8W-10-11, 12, 14, 20, 21
Joint Connector No. 5................ 8W-10-22
Joint Connector No. 6........... 8W-10-13, 22, 26
Joint Connector No. 8................ 8W-10-22
Junction Block................... 8W-10-10, 13
Left Fog Lamp...................... 8W-10-25
Left Headlamp...................... 8W-10-24
Left Outboard Headlamp........... 8W-10-24, 25
Low Note Horn..................... 8W-10-26
Oxygen Sensor 1/1 Left Bank Up . . 8W-10-17, 18, 19
Oxygen Sensor 1/1 Upstream........... 8W-10-17
Oxygen Sensor 1/2 Downstream......... 8W-10-17
Oxygen Sensor 1/2 Left Bank Down...... 8W-10-19
Oxygen Sensor 1/2 Pre-Catalyst......... 8W-10-18
Oxygen Sensor 1/3 Post-Catalyst........ 8W-10-18
Oxygen Sensor 2/1 Right Bank Up . 8W-10-17, 18, 19
Oxygen Sensor 2/2 Right Bank Down..... 8W-10-19
Oxygen Sensor Downstream Relay.... 8W-10-18, 19
Power Distribution Center . 8W-10-2, 8, 9, 10, 11, 12,
13, 14, 20, 21, 22, 23,
24, 25, 26, 27
Power Outlet....................... 8W-10-27
Powertrain Control Module . 8W-10-11, 12, 15, 16, 20
Quad High Beam Relay............... 8W-10-24
Right Fog Lamp..................... 8W-10-25
Right Headlamp..................... 8W-10-24
Right Outboard Headlamp.......... 8W-10-24, 25
Security Relay...................... 8W-10-25
Trailer Tow Connector................ 8W-10-21
Trailer Tow Relay.................... 8W-10-21
Transmission Control Relay............ 8W-10-26
Transmission Solenoid Assembly........ 8W-10-26
Turn Signal/Hazard Switch............ 8W-10-13
BR/BE8W-10 POWER DISTRIBUTION 8W - 10 - 1
Page 786 of 2889
8W-12 JUNCTION BLOCK
Component Page
A/C Compressor Clutch Relay.......... 8W-12-13
A/C-Heater Control................... 8W-12-9
A/C Heater Temperature Select......... 8W-12-8
Airbag Control Module............... 8W-12-17
Ambient Temperature Sensor.......... 8W-12-19
Ash Receiver Lamp................... 8W-12-9
Automatic Day/Night Mirror..... 8W-12-13, 15, 21
Back-Up Lamp Switch............. 8W-12-11, 21
Blend Door Actuator.................. 8W-12-8
Blower Motor Relay.................. 8W-12-8
Cargo Lamp No. 1................... 8W-12-14
Cargo Lamp No. 2................... 8W-12-14
Central Timer Module C1....... 8W-12-10, 13, 15
Central Timer Module C2........... 8W-12-8, 13
Cigar Lighter...................... 8W-12-16
Circuit Breaker 1.................. 8W-12-6, 7
Circuit Breaker 2.................... 8W-12-7
Combination Flasher......... 8W-12-6, 12, 15, 20
Controller Antilock Brake.............. 8W-12-8
Cup Holder Lamp.................... 8W-12-9
Data Link Connector................. 8W-12-14
Daytime Running Lamp Module........ 8W-12-11
Dome Lamp....................... 8W-12-14
Driver Door Window/Lock Switch..... 8W-12-15, 7
Driver Heated Seat Switch........... 8W-12-8, 9
Driver Power Seat Switch.............. 8W-12-7
Duty Cycle EVAP/Purge Solenoid....... 8W-12-13
Engine Control Module............... 8W-12-12
Fuel Heater Relay................... 8W-12-13
Fuel Pump Relay................... 8W-12-12
Fuse 1 (JB)......................... 8W-12-8
Fuse 1 (PDC)...................... 8W-12-16
Fuse 2 (JB)....................... 8W-12-6, 8
Fuse 3 (JB)....................... 8W-12-6, 8
Fuse 4 (JB)........................ 8W-12-10
Fuse 4 (PDC)...................... 8W-12-20
Fuse 5 (JB)......................... 8W-12-9
Fuse 6 (JB)...................... 8W-12-6, 10
Fuse 7 (JB)...................... 8W-12-6, 11
Fuse 8 (JB)...................... 8W-12-6, 11
Fuse 9 (JB)...................... 8W-12-6, 12
Fuse 10 (JB).................. 8W-12-6, 12, 20
Fuse 11 (JB)..................... 8W-12-6, 13
Fuse 12 (JB)....................... 8W-12-14
Fuse 13 (JB)....................... 8W-12-15
Fuse 14 (JB)....................... 8W-12-16Component Page
Fuse 15 (JB)..................... 8W-12-6, 16
Fuse 16 (JB)..................... 8W-12-6, 16
Fuse 17 (JB)..................... 8W-12-6, 17
Fuse 18 (JB)..................... 8W-12-6, 17
Fuse 19 (JB)..................... 8W-12-6, 17
G100............................. 8W-12-18
G200.......................... 8W-12-15, 19
G201....................... 8W-12-15, 18, 20
Glove Box Lamp And Switch........... 8W-12-14
Headlamp Switch.................... 8W-12-9
Heated Mirror Switch................. 8W-12-8
Heated Seat Relay................... 8W-12-8
Ignition Switch................... 8W-12-6, 20
Instrument Cluster.......... 8W-12-9, 16, 17, 18
Intermittent Wiper Switch............ 8W-12-10
Joint Connector No. 1............. 8W-12-11, 21
Joint Connector No. 3................ 8W-12-18
Joint Connector No. 4................ 8W-12-18
Joint Connector No. 5.............. 8W-12-9, 14
Joint Connector No. 6................ 8W-12-10
Joint Connector No. 8........... 8W-12- 8, 9, 17
Junction Block............ 8W-12-2, 3, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21
Left Park/Turn Signal Lamp........... 8W-12-18
Left Visor/Vanity Lamp............ 8W-12-14, 15
Overhead Console.......... 8W-12-13, 14, 19, 21
Park/Neutral Position Switch....... 8W-12-11, 21
Passenger Airbag On/Off Switch........ 8W-12-17
Passenger Door Window/Lock Switch . . 8W-12-7, 15
Passenger Heated Seat Switch........ 8W-12-8, 9
Passenger Power Seat Switch........... 8W-12-7
Power Distribution Center......... 8W-12-16, 20
Power Mirror Switch.............. 8W-12-14, 21
Powertrain Control Module............ 8W-12-12
Radio Choke Relay.................. 8W-12-10
Radio....................... 8W-12-9, 11, 14,
Right Park/Turn Signal Lamp.......... 8W-12-18
Right Visor/Vanity Lamp........... 8W-12-14, 15
Seat Heat Interface Module............ 8W-12-8
Turn Signal/Hazard Switch......... 8W-12-18, 20
Underhood Lamp................... 8W-12-14
Windshield Washer Pump............. 8W-12-10
Wiper Motor Relay.................. 8W-12-10
Wiper Motor....................... 8W-12-10
BR/BE8W-12 JUNCTION BLOCK 8W - 12 - 1