
TEST ACTION APPLICABILITY
5 Turn the ignition off to the lock position.
Disconnect the Front Control Module harness connector.
Disconnect the Brake Shift Interlock harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Brake Shift Interlock Feed Circuit from the Front
Control Module connector to the Brake Shift Interlock harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Brake Shift Interlock Feed Circuit for an open.
No®Go To 7
6 Turn the ignition off to the lock position.
Disconnect the Front Control Module harness connector.
Disconnect the Brake Shift Interlock harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Brake Shift Interlock Control Circuit from the Front
Control Module connector to the Brake Shift Interlock harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Brake Shift Interlock Control Circuit for an open.
No®Go To 7
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Front Control Module in accordance with the Service
Information.
8 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
No®Test Complete.
147
TRANSMISSION
*BRAKE SHIFT INTERLOCK OUTPUT OPEN ÐContinued

TEST ACTION APPLICABILITY
5 Turn the ignition off to the lock position.
Disconnect the Left Reverse Lamp harness connector per the service information.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Reverse Lamp Ground circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 6
No®Repair the Reverse Lamp Ground circuit for an open.
6 Turn the ignition off to the lock position.
Disconnect the Left Reverse Lamp harness connector per the service information.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance across the Reverse Lamp contacts.
Is the resistance above 5.0 ohms?All
Ye s®Replace the Reverse Lamp.
No®Go To 7
7 Turn the ignition off to the lock position.
Disconnect the Right Reverse Lamp harness connector per the service information.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Reverse Lamp Ground circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 8
No®Repair the Reverse Lamp Ground circuit for an open.
8 Turn the ignition off to the lock position.
Disconnect the Right Reverse Lamp harness connector per the service information.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance across the Reverse Lamp contacts.
Is the resistance above 5.0 ohms?All
Ye s®Replace the Reverse Lamp.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS Ground circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 10
No®Repair the TRS Ground circuit for an open.
10 Turn the ignition off to the lock position.
Disconnect the IPM harness connector.
Disconnect the TRS harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS Reverse Sense circuit between the IPM connector
and the TRS connector.
Is the resistance below 5.0 ohms?All
Ye s®Test Complete.
No®Repair the TRS Reverse Sense circuit for an open.
152
TRANSMISSION
*NO BACK UP LAMP OPERATION ÐContinued

9.0 CONNECTOR PINOUTS
AUTOSTICK SWITCH - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 T55 20YL/VT AUTOSTICK/OVERDRIVE OFF MUX INPUT
2 Z65 20BK/YL GROUND
BODY CONTROL MODULE C2 - BLACK/GREEN 34 WAYCAV CIRCUIT FUNCTION
1 L61 18WT/LG LEFT FRONT TURN SIGNAL DRIVER
2 L63 18WT/DG LEFT REAR TURN SIGNAL DRIVER
3 L60 18WT/TN RIGHT FRONT TURN SIGNAL DRIVER
4 L62 18WT/BR RIGHT REAR TURN SIGNAL DRIVER
5 F20 20PK/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
6 G25 20VT/TN (EXCEPT
LOWLINE)LIFTGATE SWITCH MUX
7 A114 20GY/RD FUSED B(+) (I.O.D.)
8- -
9 L1 18WT/LG BACK-UP LAMP DRIVER
10 P3 20TN/WT LEFT FRONT DOOR LOCK DRIVER
11 P2 20TN/GY RIGHT FRONT DOOR LOCK DRIVER
12 P38 20TN/DB RIGHT SLIDING DOOR LOCK DRIVER
13 - -
14 - -
15 Z15 18BK/TN GROUND
16 G920 20VT/YL (MEMORY) MEMORY SELECT SWITCH RETURN
17 G153 20VT/YL (POWER
LIFTGATE)LIFTGATE MODULE WAKE UP SIGNAL
18 P32 20TN/VT LEFT SLIDING DOOR LOCK DRIVER
19 Z10 18BK/TN GROUND
20 P5 20TN/OR LEFT SLIDING DOOR UNLOCK DRIVER
21 - -
22 P30 20TN/DG LIFTGATE HANDLE SWITCH SENSE
23 - -
24 G200 20VT/BR (MEMORY) MEMORY SELECT SWITCH MUX
25 M22 20YL/OR COURTESY LAMPS DRIVER
26 P4 20TN/BR RIGHT FRONT DOOR UNLOCK DRIVER
27 P34 20TN/LB RIGHT SLIDING DOOR UNLOCK DRIVER
28 P1 20TN/LG LEFT FRONT DOOR UNLOCK DRIVER
29 - -
30 - -
31 - -
32 W13 18BR/LG REAR WIPER MOTOR CONTROL
33 M24 20YL/WT COURTESY LAMPS DRIVER
34 - -
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CONNECTOR PINOUTS

DIAGNOSTIC JUNCTION PORT - BLACK 16 WAYCAV CIRCUIT FUNCTION
1 D25 20WT/VT PCI BUS (PCM/SKIM)
2 D25 20WT/VT PCI BUS (HVAC)
3 D25 20WT/VT PCI BUS (RADIO)
4 D25 20WT/VT PCI BUS (ORC)
5 D25 20WT/VT PCI BUS (CLUSTER)
6 D25 20WT/VT PCI BUS (BCM)
7 D25 20WT/VT PCI BUS (DLC)
8 D25 20WT/VT PCI BUS (OVERHEAD CONSOLE)
9 D25 20WT/VT PCI BUS (IPM)
10 D25 20WT/VT PCI BUS (LSIACM)
11 D25 20WT/VT PCI BUS (MEMORY SEAT/MIRROR)
12 D25 20WT/VT PCI BUS (PWR DOOR/ LT, RT LIFTGATE)
13 D25 20WT/VT PCI BUS (RSIACM)
14 - -
15 - -
16 - -
INPUT SPEED SENSOR (3.3L/3.8L) - GRAY 2 WAYCAV CIRCUIT FUNCTION
1 T13 18DG/VT SPEED SENSOR GROUND
2 T52 18DG/WT INPUT SPEED SENSOR SIGNAL
INTELLIGENT POWER MODULE C3 - NATURAL 20 WAYCAV CIRCUIT FUNCTION
1 Z115 20BK/OR (3.3L/3.8L) GROUND
2 F1 18PK/WT (3.3L/3.8L) FCM OUTPUT (UNLOCK-RUN-START)
3 T751 18YL (3.3L/3.8L) FUSED IGNITION SWITCH OUTPUT (START)
4 T2 18DG/WT TRS REVERSE SENSE
5 T16 18YL/OR (3.3L/3.8L) TRANSMISSION SAFETY SHUTDOWN RELAY OUTPUT
6 T15 18YL/BR (3.3L/3.8L) TRANSMISSION CONTROL RELAY CONTROL
7 C3 18DB/YL A/C COMPRESSOR CLUTCH RELAY OUTPUT
8 K31 18BR FUEL PUMP RELAY CONTROL
9 C13 18LB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
10 A104 18YL/RD (3.3L/3.8L) FUSE B(+)
11 - -
12 - -
13 D25 18WT/VT (3.3L/3.8L) PCI BUS (EATX)
14 T752 18DG/OR ENGINE STARTER MOTOR RELAY CONTROL
15 Z116 18BK/VT GROUND
16 K51 18BR/WT AUTOMATIC SHUTDOWN RELAY CONTROL
17 F202 18PK/GY IGNITION SWITCH OUTPUT (RUN-START)
18 K173 18BR/VT RADIATOR FAN RELAY CONTROL
19 F202 18PK/GY IGNITION SWITCH OUTPUT (RUN-START)
20 A109 18OR/RD FUSED B(+)
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CONNECTOR PINOUTS

INTELLIGENT POWER MODULE C4 - GRAY 10 WAYCAV CIRCUIT FUNCTION
1 Z127 12BK/DG GROUND
2 T750 12YL/GY ENGINE STARTER MOTOR RELAY OUTPUT
3 K342 16BR/WT AUTOMATIC SHUTDOWN RELAY OUTPUT
4 F500 18DG/PK (ANTILOCK
BRAKES)FUSED IGNITION SWITCH RELAY OUTPUT (RUN)
5- -
6 D25 16WT/VT (ANTILOCK
BRAKES)PCI BUS
7 A107 12TN/RD (ANTILOCK
BRAKES)FUSED B(+)
8 A111 12DG/RD (ANTILOCK
BRAKES)FUSED B(+)
9 A701 14BR/RD FUSED B(+)
10 - -
INTELLIGENT POWER MODULE C5 - BLACK 4 WAYCAV CIRCUIT FUNCTION
1 A1 04RD B(+)
2- -
3- -
4- -
INTELLIGENT POWER MODULE C6 - WHITE 10 WAYCAV CIRCUIT FUNCTION
1 A101 12VT/RD FUSED B(+)
2 Z117 16BK/WT GROUND
3 Z118 16BK/YL GROUND
4 A110 12OR/RD (POWER
SEAT)FUSED B(+)
5- -
6- -
7 C7 12DB FUSED FRONT BLOWER MOTOR RELAY OUTPUT
8 F307 16LB/PK (ACCESSO-
RY RELAY POSITION)FUSED ACCESSORY RELAY OUTPUT
8 F307 16LB/PK (BATTERY
POSITION)FUSED B(+)
9 A113 12WT/RD (POWER
SLIDING DOOR)FUSED B(+)
10 - -
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CONNECTOR PINOUTS

INTELLIGENT POWER MODULE C7 - BLACK 20 WAYCAV CIRCUIT FUNCTION
1 C16 20DB/GY FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
2 T751 20YL FUSED IGNITION SWITCH OUTPUT (START)
3 D25 20WT/VT PCI BUS
4- -
5 K32 18DB/YL BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID CONTROL
6- -
7 W7 20BR/GY FRONT WIPER PARK SWITCH SENSE
8 B20 20DG/OR BRAKE FLUID LEVEL SWITCH SENSE
9 F201 18PK/OR FCM OUTPUT (RUN-START)
10 F214 20PK/LG FCM OUTPUT (RUN-START)
11 A106 20LB/RD FUSED B(+)
12 - -
13 F2 18PK/WT FCM OUTPUT (UNLOCK RUN-START)
14 - -
15 A114 16GY/RD FUSED B(+) (I.O.D.)
16 D23 20WT/BR FLASH PROGRAM ENABLE
17 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
18 X1 16DG/BR (PREMIUM 8
SPEAKER)NAME BRAND SPEAKER RELAY OUTPUT
19 X3 20DG/VT HORN SWITCH SENSE
20 F100 18PK/VT FCM OUTPUT (RUN)
INTELLIGENT POWER MODULE C9 - BLACK 10 WAYCAV CIRCUIT FUNCTION
1 A102 12WT/RD FUSED B(+)
2 F20 18PK/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 C15 12DB/WT FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
4 A105 18DB/RD FUSED B(+)
5 L61 18WT/LG LEFT FRONT TURN SIGNAL OUTPUT
6 A701 16BR/RD FUSED B(+) (HAZARD)
6 A701 16BR/RD FUSED B(+) (HAZARD)
7 F306 16DB/PK FUSED ACCESSORY RELAY OUTPUT (RUN-ACC)
8 F30 12PK/YL (POWER
WINDOWS)FUSED ACCESSORY RELAY OUTPUT (RUN-ACC)
9 A115 12YL/RD (POWER
LIFTGATE)FUSED B(+)
10 F302 18GY/PK FUSED ACCESSORY RELAY OUTPUT (RUN-ACC)
LEFT REAR LAMP ASSEMBLY - BLACK 6 WAYCAV CIRCUIT FUNCTION
1 L63 18WT/DG LEFT REAR TURN SIGNAL DRIVER
2 L62 18WT/BR RIGHT REAR TURN SIGNAL DRIVER
3 L77 18WT/BR FUSED LEFT PARK LAMP RELAY OUTPUT
4 L1 18WT/LG BACK-UP LAMP DRIVER
5 Z363 18BK/DG GROUND
6 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
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CONNECTOR PINOUTS

TRANSMISSION CONTROL MODULE (3.3L/3.8L) - BLACK 60 WAYCAV CIRCUIT FUNCTION
1 T1 18DG/LB TRS T1 SENSE
2- -
3 T3 18DG/DB TRS T3 SENSE
4- -
5- -
6 K24 18BR/LB CRANKSHAFT POSITION SENSOR SIGNAL
7 D21 18WT/BR SCI TRANSMIT
8 T751 18YL IGNITION SWITCH OUTPUT (START)
9 T9 18DG/TN OVERDRIVE PRESSURE SWITCH SENSE
10 T10 18DG/LG TORQUE MANAGEMENT REQUEST SENSE
11 F1 18PK/WT FCM OUTPUT (UNLOCK-RUN-START)
12 K22 18BR/OR THROTTLE POSITION SENSOR SIGNAL
13 T13 18DG/VT SPEED SENSOR GROUND
14 T14 18DG/BR OUTPUT SPEED SENSOR SIGNAL
15 T15 18YL/BR TRANSMISSION SAFETY SHUTDOWN RELAY CONTROL
16 T16 18YL/OR TRANSMISSION SAFETY SHUTDOWN RELAY OUTPUT
17 T16 18YL/OR TRANSMISSION SAFETY SHUTDOWN RELAY OUTPUT
18 - -
19 T19 18YL/DB 2-4 SOLENOID CONTROL
20 T20 18DG/WT LOW/REVERSE SOLENOID CONTROL
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
27 - -
28 - -
29 - -
30 - -
31 - -
32 - -
33 - -
34 - -
35 - -
36 - -
37 - -
38 - -
39 - -
40 - -
41 T41 18DG/GY TRS T41 SENSE
42 T42 18DG/YL TRS T42 SENSE
43 D25 18WT/VT PCI BUS
44 - -
45 - -
46 D16 18WT/OR SCI RECEIVE
47 T47 18YL/DG 2-4 PRESSURE SWITCH SENSE
48 - -
49 - -
50 T50 18YL/TN LOW/REVERSE PRESSURE SWITCH SENSE
51 K900 18DB/DG SENSOR GROUND
52 T52 18DG/WT INPUT SPEED SENSOR SIGNAL
53 Z132 16BK/YL GROUND
54 T54 18DG/OR TRANSMISSION TEMPERATURE SENSOR SIGNAL
55 T55 18YL/VT (AUTOSTICK) AUTOSTICK/OVERDRIVE OFF MUX INPUT
56 A104 18YL/RD FUSED B(+)
57 Z133 16BK/LG GROUND
58 N7 18DB/OR VEHICLE SPEED SENSOR SIGNAL
59 T59 18YL/LB UNDERDRIVE SOLENOID CONTROL
60 T60 18YL/GY OVERDRIVE SOLENOID CONTROL
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174
CONNECTOR PINOUTS