2006 DODGE RAM SRT-10 Fuel pump relay

Possible Causes
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
(A109) FUEL PUMP RELAY OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP
Diagnostic Test
1.FUEL PUMP OPERATION
Ignition on, engine not running.
With a scan tool, actuate the Fuel System test.
NOTE: It may be necessary to use a mechanics stethoscope in the next step.
Listen for fuel pump operation at the fuel tank.
Does the Fuel Pump operate?
Ye s>>
Go To 2
No>>
Go To 5
CAUTION: Stop All Actuations.
2.FUEL PRESSURE
Turn the ignition off.
WARNING: The fuel system is under a constant pressure (even with the engineoff). Before testing or ser-
vicing any fuel system hose, fitting or line, the fuel system pressure mustbe released. Failure to follow
these instructions can result in personal injury or death.
Install a fuel pressure gauge at the engine.
Ignition on, engine not running.
With the scan tool, actuate the ASD FuelSystem test and observe the fuel pressure gauge.
NOTE: NOTE: Fuel pressure specification is 407 KPa +/- 34 KPa (59 psi +/- 5 psi).
Choose a conclusion that best matches your fuel pressure reading.
Below Specification
Go To 3
Within Specification
Te s t C o m p l e t e .
Above Specification
Replace the fuel filter/fuel pressure regulator.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
CAUTION: Stop All Actuations.
3.RESTRICTED FUEL SUPPLY LINE
Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the engine off. Before testing or ser-
vicing any fuel system hose, fitting or line, the fuel system pressure mustbe released.
Raise vehicle on hoist, and disconnect the fuel pressure line at the fuel pump module.
Install special tool #6539 (5/16
) or #6631(3/8) fuel line adapter and the fuel pressure gauge between the fuel sup-
ply line and the fuel pump module.
Ignition on, engine not running.
With the scan tool, actuate the ASD FuelSystem test and observe the fuel pressure gauge.

NOTE: Fuel pressure specification is 407 KPa +/- 34 KPa (59 psi +/- 5 psi).
CAUTION: Stop All Actuations.
Is the fuel pressure within specification now?
Ye s>>
Repair/replace fuel supply line as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 4
4.CHECKING FUEL INLET STRAINER
Turn the ignition off.
WARNING: The fuel system is under a constant pressure (even with the engineoff). Before testing or ser-
vicing any fuel system hose, fitting or line, the fuel system pressure mustbe released. Failure to follow
these instructions can result in personal injury or death.
Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer.
Is the Fuel Inlet Strainer plugged?
Ye s>>
Replace the Fuel Pump Inlet Strainer.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Replace the Fuel Pump Module.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
5.(A109) FUEL PUMP RELAY OUTPUT CIRCUIT OPEN
Turn the ignition off.
Remove the Fuel Pump Relay from the IPM.
Disconnect the Fuel Pump Module harness connector.
Measure the resistance of the (A109) Fuel Pump Relay Output circuit
from the relay connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
Ye s>>
Replace the Fuel Pump Relay.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Repair the open in the (A109) Fuel Pump Relay Output cir-
cuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)

P0478-HIGH VOLTAGE ON THE ENGINE
BRAKE DRIVER.......................... 1350
P0480-FAN CLUTCH ...................... 1352
P0483-FAN SPEED ....................... 1357
P0500-NO VEHICLE SPEED SENSOR
SIGNAL.................................. 1364
P0513-SKIM INVALID KEY ERROR ......... 1368
P0514-BAT TEMPERATURE SENSOR
RATIONALITY............................ 1370
P0516-LOW VOLTAGE AT THE BAT TEMP
SENSOR................................. 1372
P0517-HIGH VOLTAGE AT THE BAT TEMP
SENSOR................................. 1376
P0521-OIL PRESSURE SWITCH
RATIONALITY............................ 1380
P0524-OIL PRESSURE TOO LOW .......... 1383
P0532-A/C SENDING UNIT VOLTS TOO
LOW..................................... 1385
P0533-A/C SENDING UNIT VOLTS TOO
HIGH.................................... 1391
P0541-LOW VOLTAGE ON THE #1 INTAKE
AIR HEATER RELAY...................... 1396
P0542-HIGH VOLTAGE ON THE #1 INTAKE
AIR HEATER RELAY...................... 1399
P0562-BATTERY VOLTAGE LOW ........... 1402
P0563-BATTERY VOLTAGE HIGH .......... 1406
P0572-LOW VOLTAGE DETECTED AT THE
BRAKE SWITCH.......................... 1409
P0573-HIGH VOLTAGE DETECTED AT THE
BRAKE SWITCH.......................... 1413
P0580-LOW VOLTAGE DETECTED AT THE
SPEED CONTROL SWITCH................ 1416
P0581-HIGH VOLTAGE DETECTED AT THE
SPEED CONTROL SWITCH................ 1420
P0602-CHECKSUM ERROR ............... 1425
P0604-ECM SOFTWARE ERROR .......... 1426
P0606-ECM HARDWARE ERROR .......... 1427
P0607-ECM INTERNAL FAILURE ........... 1428
P0622-GENERATOR FIELD NOT
SWITCHING PROPERLY.................. 1429
P0628-LOW VOLTAGE DETECTED AT THE
FUEL LIFT PUMP......................... 1433
P0629-HIGH VOLTAGE DETECTED AT THE
FUEL LIFT PUMP......................... 1436
P0630-VIN NOT ENTERED ERROR ........ 1439
P0633-SKIM SECRET KEY NOT ENTERED . 1440
P0642-LOW VOLTAGE AT THE #2 SENSOR
SUPPLY CIRCUIT......................... 1441
P0643-HIGH VOLTAGE AT THE #2 SENSOR
SUPPLY CIRCUIT......................... 1445
P0646-LOW VOLTAGE DETECTED AT THE
A/C CLUTCH RELAY...................... 1448
P0647-HIGH VOLTAGE DETECTED AT THE
A/C CLUTCH RELAY...................... 1451
P0652-LOW VOLTAGE AT THE #1 SENSOR
SUPPLY CIRCUIT......................... 1454
P0653-HIGH VOLTAGE AT THE #1 SENSOR
SUPPLY CIRCUIT......................... 1458P0698-ACCELERATOR PEDAL POSITION
SENSOR (APPS) SUPPLY VOLTAGE TOO
LOW..................................... 1461
P0699-ACCELERATOR PEDAL POSITION
SENSOR (APPS) SUPPLY VOLTAGE TOO
HIGH.................................... 1465
P1272-A/C CLUTCH CONTROL CIRCUIT 2
LOW..................................... 1468
P1273-A/C CLUTCH CONTROL CIRCUIT 2
HIGH.................................... 1471
P1274-A/C CLUTCH CONTROL CIRCUIT 2
OPEN.................................... 1475
P1275-A/C CLUTCH CONTROL CIRCUIT 2
OVERCURRENT.......................... 1479
P127C-FUEL PUMP CONTROL CIRCUIT 2
LOW..................................... 1482
P127D-FUEL PUMP CONTROL CIRCUIT 2
HIGH.................................... 1485
P127E-FUEL PUMP CONTROL CIRCUIT 2
OPEN (TIPM)............................. 1489
P0127F-FUEL PUMP CONTROL CIRCUIT 2
OVERCURRENT (TIPM)
................... 1493
P1652-J1850 SHORT TO GROUND ......... 1496
P2121-PPS CONFORMANCE ERROR ...... 1499
P2122-PPS 1 VOLTAGE TOO LOW ......... 1511
P2123-PPS 1 VOLTAGE TOO HIGH ........ 1516
P2127-PPS 2 VOLTAGE TOO LOW ......... 1520
P2128-PPS 2 VOLTAGE TOO HIGH ........ 1525
P2146-BANK 1 (CYLINDERS 1-3) SHORTED
HIGH OR LOW........................... 1529
P2149-BANK 2 (CYLINDERS 4-6) SHORTED
HIGH OR LOW........................... 1537
P2266-WATER IN FUEL (WIF) SENSOR
VOLTAGE TOO LOW...................... 1544
P2269-WATER IN FUEL (WIF) .............. 1547
P2502-CHARGING SYSTEM ERROR ....... 1549
P2503-CHARGING SYSTEM OUTPUT LOW . 1552
P2504-CHARGING SYSTEM OUTPUT HIGH . 1555
P2509-POWERDOWN DATA LOST ERROR . 1559
P2607-LOW VOLTAGE AT THE #2 INTAKE
AIR HEATER RELAY...................... 1563
P2608-HIGH VOLTAGE AT THE #2 INTAKE
AIR HEATER RELAY...................... 1566
P2609-NO VOLTAGE DROP SEEN FROM
INTAKE AIR HEATERS.................... 1569
*CHECKING THE ACCELERATOR PEDAL
SENSOR CALIBRATION................... 1572
*CHECKING THE ECM POWER AND
GROUNDS............................... 1573
* PRESSURE LIMITING VALVE TEST ....... 1574
*ENGINE SURGES ........................ 1575
*ENGINE NO START/HARD START ......... 1578
*FUEL HEATER THERMOSTAT TEST ....... 1581
*IN-TANK FUEL LIFT PUMP FLOW/
DIAGNOSTIC TEST PROCEDURE.......... 1582
*FUEL PUMP RETURN FLOW TEST ........ 1585
*HIGH PRESSURE FUEL PUMP
PERFORMANCE TEST.................... 1586
*INJECTOR RETURN FLOW TEST ......... 1587

When Monitored:
Whilethekeyison.
Set Condition:
The commanded signal to the fuel lift pump relay does not match the feedbacksignal from the fuel lift pump
relay.
Possible Causes
DAMAGED WIRING HARNESS
LIFT PUMP DRIVER CIRCUIT SHORTED TO GROUND
ECM
TIPM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.LIFT PUMP DRIVER CIRCUIT SHORTED TO GROUND
Turn the ignition on, engine off.
Disconnect the ECM and TIPM connectors.
NOTE: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance of the lift pump driver wire between the ECM connector and ground.
Is the resistance less than 10 Ohms?
Ye s>>
Fix or repair the wire harness.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 2
2.ECM
Turn Ignition off.
Connect the ECM and TIPM connectors.
Turn the ignition on, engine off.
Using a back probing tool 6801, back probe the lift pump logic pin in from TIPM connector.
Toggle the lift pump actuator with the Electronic Service Tool.
Using a 12 volt test light connected to battery negative, check the lift pump circuit at the TIPM connector.
NOTE: The test light must illuminate brightly.
Compare the brightness to that of a direct connection to the battery.
Does the test light cycle on and off and illuminate brightly?
Ye s>>
Go To 3
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

1.
1. Using the Scan tool, check for DTCs. Troubleshoot any active DTCs beforeperforming this test.
2. Disconnect the wiring harness from the lift pump at the fuel tank module connector and inspect the pins for
damage. Fix or replace any damaged component.
3. Connect a voltmeter between the fuel lift pump supply and return pins at the fuel tank module connector.
4. Turn the ignition to the on position. Use the Scan tool to actuate the fuellift pump, record the voltage on the
voltmeter.
5. If the voltage is greater than 11.5 volts, go to step 14. If the voltage is lessthan11.5volts,gotostep6
6. Using a voltmeter, measure the battery voltage to determine that the voltage is greater than 11.5 volts. If the
voltage is greater than 11.5 volts, go to step 7. If the voltage is not greater than 11.5 volts, troubleshoot for low
battery voltage.
7. Remove the fuel lift pump relay from the PDC. Use a voltmeter to measure the voltage at the fuel lift pump relay
voltage supply pin in the PDC. If the voltage is greater than 11.5 volts, go to step 8. If the voltage is not greater than
11.5 volts, fix or replace the harness.
8. Remove the fuel lift pump relay from the PDC. Install a spare relay in place of the fuel lift pump relay. Using the
Scan tool, actuate the fuel lift pump. Use a voltmeter to measure the voltage between the fuel lift pump supply and
return pins at the fuel tank module connector while the fuel lift pump is actuated. If the voltage is greater than 11.5
volts, replace the fuel lift pump relay. If the voltage is not greater than 11.5volts,gotostep9.
9. Disconnect the wiring harness from the fuel tank module. Remove the liftpump relay from the PDC. Using an
Ohmmeter, measure the resistance of the fuel lift pump power supply wire between the PDC relay output pin and
the fuel tank module connector. If the resistance is less than 10 ohms, go tostep 10. If it is greater than 10 ohms,
fix or replace the harness.
10. Disconnect the wiring harness from the fuel tank module. Remove the fuel lift pump relay from the PDC. Using
a voltmeter, measure the voltage between battery negative and the fuel lift pump power supply wire at the fuel
module connector. If the voltage is less than 1 volt, go to step 11. If the voltage is greater than 1 volt, fix or replace
the harness.
11. Disconnect the wiring harness from the fuel tank module. Remove the fuel lift pump relay from the PDC. Using
an ohmmeter, measure the resistance between battery negative and the fuellift pump power supply wire at the fuel
module connector. If the resistance is less than 10 ohms, fix or replace theharness. If the resistance is greater than
10 ohms, go to step 12.
12. Disconnect the wiring harness from the fuel tank module. Using an Ohmmeter, measure the resistance of the
fuel lift pump ground wire between the fuel tank module connector and battery negative. If the resistance is less
than 10 ohms, go to step 13. If the resistance is greater than 10 ohms, fix or replace the harness.
13. Disconnect the wiring harness from the fuel tank module. Using a voltmeter, measure the voltage between the
fuel lift pump ground wire and battery negative. If the voltage is less than1 volt, go to step 14. If the voltage is
greater than 1 volt, fix or replace the harness.
14. Reconnect the lift pump connector.
FLOW TEST.
1. Remove the fuel pump supply banjo fitting from the fuel injection pump.
2. Install Miller Tool #9014 fuel system test fitting into the fuel injection pump.
3. Connect one end of a section of fuel hose to the test fitting.
4. Put the other end of the fuel hose into an empty fuel container.
5. Use the scan tool to actuate the fuel lift pump.
6. While the lift pump is running, move the fuel hose from the fuel canister into a 1000ml graduated cylinder for 10
seconds.
7. Read and record the amount of fuel in the graduated cylinder after 10 seconds.
8. If you have more than 430ml in the graduated cylinder after 10 seconds, the test has successfully passed.
9. If you have less than 430ml of fuel in the graduated cylinder, inspect thefuel supply line from the fuel tank to the
fuel filter housing and the fuel supply line between the fuel filter housing and the high pressure fuel pump for signs
of damage, replace as necessary. If no damage is found, replace the fuel filter and retest.
10.Verify the Screened Banjo Bolt at the outlet of the fuel filter is free ofdebris. If debris is found, rinse screen with
water, blow dry and reinstall. Retest vehicle. If flow meets specification then trace back the source of debris, if flow
is still below spec repair damaged component.

P0355-IGNITION COIL #5 PRIMARY
CIRCUIT................................. 1948
P0420-1/1 CATALYTIC CONVERTER
EFFICIENCY............................. 1952
P0432-2/1 CATALYTIC CONVERTER
EFFICIENCY............................. 1955
P0441-EVAP PURGE FLOW MONITOR . . . . . 1958
P0442-EVAP LEAK MONITOR MEDIUM
(0.040) LEAK DETECTED.................. 1962
P0443-EVAP PURGE SOLENOID CIRCUIT . . 1968
P0455-EVAP LEAK MONITOR LARGE LEAK
DETECTED............................... 1972
P0460-FUEL LEVEL SENDING UNIT NO
CHANGE OVER MILES.................... 1978
P0462-FUEL LEVEL SENDING UNIT VOLTS
TOO LOW................................ 1979
P0463-FUEL LEVEL SENSOR 1 CIRCUIT
HIGH.................................... 1982
P0500-NO VEHICLE SPEED SIGNAL ....... 1986
P0505-IDLE AIR CONTROL MOTOR
CIRCUITS................................ 1989
P0513-INVALID SKREEM KEY ............. 1994
P0522-OIL PRESSURE CIRCUIT LOW ...... 1996
P0523-OIL PRESSURE CIRCUIT HIGH ..... 2000
P0601-PCM INTERNAL CONTROLLER
FAILURE................................. 2003
P0622-GENERATOR FIELD NOT
SWITCHING PROPERLY.................. 2004
P0645-A/C CLUTCH RELAY CIRCUIT . . ..... 2008
P0801-REVERSE GEAR LOCKOUT CIRCUIT
OPEN OR SHORTED...................... 2012
P1195-O2 SENSOR 1/1 SLOW DURING
CATALYST MONITOR..................... 2016
P1196-O2 SENSOR 2/1 SLOW DURING
CATALYST MONITOR..................... 2019
P126B-ASD CONTROL CIRCUIT 2 LOW .... 2022
P126C-ASD CONTROL CIRCUIT 2 HIGH .... 2026
P126D-ASD CONTROL CIRCUIT 2 OPEN . . . 2030
P126E-ASD CONTROL CIRCUIT
OVERCURRENT.......................... 2034
P1272-A/C CLUTCH CONTROL CIRCUIT 2
LOW..................................... 2038
P1273-A/C CLUTCH CONTROL CIRCUIT 2
HIGH.................................... 2041
P1274-A/C CLUTCH CONTROL CIRCUIT 2
OPEN.................................... 2045
P1275-A/C CLUTCH CONTROL CIRCUIT 2
OVERCURRENT.......................... 2049
P1277-STARTER CONTROL CIRCUIT 2 LOW
(TIPM)................................... 2052
P1278-STARTER CONTROL CIRCUIT 2
HIGH (TIPM).............................. 2055
P1279-STARTER CONTROL CIRCUIT 2
OPEN (TIPM)............................. 2058
P127A-STARTER CONTROL CIRCUIT 2
OVERCURRENT.......................... 2061
P127C-FUEL PUMP CONTROL CIRCUIT 2
LOW..................................... 2064P127D-FUEL PUMP CONTROL CIRCUIT 2
HIGH.................................... 2067
P127E-FUEL PUMP CONTROL CIRCUIT 2
OPEN (TIPM)............................. 2071
P0127F-FUEL PUMP CONTROL CIRCUIT 2
OVERCURRENT (TIPM)................... 2075
P1281-ENGINE IS COLD TOO LONG ....... 2078
P1282-FUEL PUMP/SYSTEM RELAY
CONTROL CIRCUIT....................... 2079
P1294-TARGET IDLE NOT REACHED ...... 2082
P1296-NO 5-VOLTS TO MAP SENSOR ..... 2085
P1297-NO CHANGE IN MAP FROM START
TO RUN.................................. 2089
P1388-AUTO SHUTDOWN RELAY CONTROL
CIRCUIT................................. 2094
P1389-NO ASD RELAY OUTPUT VOLTAGE
AT P C M.................................. 2097
P1391-INTERMITTENT LOSS OF CMP OR
CKP
..................................... 2100
P1398-MIS-FIRE ADAPTIVE NUMERATOR
AT L I M I T................................. 2104
P1486-EVAP LEAK MONITOR PINCHED
HOSE FOUND............................ 2106
P1492-AMBIENT/BATTERY TEMPERATURE
SENSOR VOLTAGE TOO HIGH............. 2110
P1493-AMBIENT/BATTERY TEMPERATURE
SENSOR VOLTAGE TOO LOW............. 2114
P1494-LEAK DETECTION PUMP SWITCH
OR MECHANICAL FAULT.................. 2117
P1495-LEAK DETECTION PUMP SOLENOID
CIRCUIT................................. 2121
P1499-HYDRAULIC FAN SOLENOID
CIRCUIT................................. 2126
P1594-CHARGING SYSTEM VOLTAGE TOO
HIGH.................................... 2130
P1598-A/C PRESSURE SENSOR VOLTAGE
TOO HIGH............................... 2133
P1599-A/C PRESSURE SENSOR VOLTAGE
TOO LOW................................ 2137
P1682-CHARGING SYSTEM VOLTAGE TOO
LOW..................................... 2141
P1687-NO CLUSTER BUS MESSAGE ...... 2146
P1695-BUS MESSAGE FROM BODY
CONTROL MODULE...................... 2148
P1696-PCM FAILURE EEPROM WRITE
DENIED.................................. 2151
*BRAKE SWITCH SENSE STATUS DOES
NOT CHANGE ON THE SCAN TOOL....... 2153
*CANNOT SHIFT INTO REVERSE .......... 2157
*CHECKING A/C SYSTEM OPERATION
WITH NO DTCS.......................... 2159
*CHECKING CHARGING SYSTEM
OPERATION WITH NO DTCS.............. 2163
*CHECKING RADIATOR FAN OPERATION . . 2167
*CHECKING THE PCM POWER AND
GROUNDS............................... 2169
B2277–CAN GATEWAY INTERNAL
(GATEWAY).............................. 2172
U0001–CAN C BUS CIRCUIT (GATEWAY) . . . 2172

P0300-MULTIPLE CYLINDER MISFIRE
For a complete wiring diagramRefer to Section 8W.
When Monitored:
Any time the engine is running, and the adaptive numerator has been successfully updated.
Set Condition:
When more than a 2% (2.5% LEV) misfire rate is measured during two trips. Above 3000 RPM 1 trip less than
3000 RPM 2 trip. Three good trips to turn off the MIL.
Possible Causes
(K342) ASD RELAY OUTPUT CIRCUIT
INJECTOR CONTROL CIRCUIT
COIL CONTROL CIRCUIT
IGNITION WIRE
SPARK PLUG
IGNITION COIL
FUEL PUMP INLET STRAINER PLUGGED
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP MODULE
FUEL PRESSURE LEAK DOWN
FUEL INJECTOR
ENGINE MECHANICAL
PCM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.CYLINDER MIS-FIRE CONDITION ACTIVE
NOTE: Check for any TSB’s that apply to a Misfire condition. Review the vehicle repair history for any mis-
fire condition repairs that have been performed.
Star the engine.
Observe the WHICH CYLINDER IS MISFIRING screen for at least one minute on the scan tool.
Is there a misfire present?
Ye s>>
Go To 2
No>>
Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
2.VISUAL INSPECTION
NOTE: Anything that affects the speed of the crankshaft can cause a misfireDTC.
NOTE: When a Misfire is detected for a particular cylinder, the PCM will shut down that cylinders Injector
Control circuit.
- Visually inspect the engine for any of the following conditions.
- Worn serpentine belt
- Binding Engine-Driven accessories: A/C Compressor, P/S Pump, Water pump.
- Misalignment of the Water pump, P/S Pump and A/C Compressor pulleys
- Corroded PCM power and ground circuits.
- Improper CKP, CMP, MAP, and TP Sensor mounting
- Poor connector/terminal to component connection. i.e., CKP sensor, Fuel Injector, Ign coil, etc.

15.IGNITION COIL
Disconnect the Ignition Coil harness connector.
Remove the Fuel Pump Relay.
Using a 12-volt test light connected to 12-volts, probe the (K19) Ignition
Coil Control No.1 circuit.
Crank the engine for 5 seconds while observing the test light.
NOTE: The primary resistance of the 8.3L Ignition coil is 0.53 to
0.65 of an ohm at 77°F (25°C).
Does the test light brightly blink/flicker?
Ye s>>
Replace the Ignition Coil.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 16
16.(K19) IGNITION COIL CONTROL NO.1 CIRCUIT
Turn the ignition off.
Disconnect the C1 PCM harness connector.
Check the (K19) Ignition Coil Control No.1 circuit for an open or short to
ground.
Was a problem found with the Coil Control circuit?
Ye s>>
Repair the (K19) Ignition Coil Control No.1 circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 17