Page 527 of 4284

Symptom:
RIGHT LOW BEAM HEADLAMP CIRCUIT SHORTED TO GROUND
POSSIBLE CAUSES
FRONT CONTROL MODULE
RIGHT HEADLAMP
RIGHT LOW BEAM DRIVER CIRCUIT SHORTED TO GROUND
WIRING PROBLEM
WIRING HARNESS INSPECTION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, erase the Front Control Module DTC's.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC's.
Is this DTC present?All
Ye s®Go To 2
No®Go To 5
2 Turn the ignition off.
Disconnect the Right Headlamp.
Disconnect the Front Control Module from the Intelligent Power Module.
Measure the resistance between Ground and the Right Low Beam Driver circuit.
Is the resistance below 100.0 ohms?All
Ye s®Repair the Right Low Beam Driver circuit for a short to ground
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Turn the ignition off.
Turn the Headlamps off.
Install a substitute Headlamp Bulb in place of the Right Headlamp Bulb.
Turn the ignition on.
With the DRB, erase the Front Control Module DTC's.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC's.
Does the DRB display this DTC?All
Ye s®Go To 4
No®Replace the original Right Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
498
EXTERIOR LIGHTING
Page 528 of 4284
TEST ACTION APPLICABILITY
4 Turn the ignition off.
Inspect the wiring and connectors associated with the Right Low Beam Driver
circuit.
Were any problems found?All
Ye s®Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
5 Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?All
Ye s®Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
499
EXTERIOR LIGHTING
RIGHT LOW BEAM HEADLAMP CIRCUIT SHORTED TO GROUND Ð
Continued
Page 529 of 4284

Symptom:
RIGHT LOW BEAM HEADLAMP CIRCUIT SHORTED TO VOLTAGE
POSSIBLE CAUSES
FRONT CONTROL MODULE
GROUND CIRCUIT OPEN
HIGH BEAM AND LOW BEAM DRIVERS CIRCUITS SHORTED TOGETHER
RIGHT HEADLAMP
RIGHT LOW BEAM DRIVER CIRCUIT SHORTED TO VOLTAGE
WIRING PROBLEM
WIRING HARNESS INSPECTION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, erase the Front Control Module DTC's.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC's.
Is this DTC present?All
Ye s®Go To 2
No®Go To 7
2 Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?All
Ye s®Go To 3
No®Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Disconnect the Front Control Module.
Measure the resistance between the Right High Beam Driver circuit and the Right
Low Beam Driver circuit at the Right Headlamp harness connector.
Is the resistance below 100.0 ohms?All
Ye s®Repair the Right High Beam Driver circuit for a short to the Right
Low Beam Driver circuit.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
500
EXTERIOR LIGHTING
Page 530 of 4284

TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Disconnect the Front Control Module.
Turn the ignition on.
Measure the voltage of the Right Low Beam Driver circuit.
Is the voltage below 1.0 volt?All
Ye s®Go To 5
No®Repair the Right Low Beam Driver circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
5 Turn the ignition off.
Turn the Headlamps off.
Install a substitute Headlamp Bulb in place of the Right Headlamp Bulb.
Turn the ignition on.
With the DRB, erase the Front Control Module DTC's.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC's.
Does the DRB display this DTC?All
Ye s®Go To 6
No®Replace the original Right Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
6 Turn the ignition off.
Inspect the wiring and connectors associated with the Right Low Beam Driver
circuit.
Were any problems found?All
Ye s®Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
7 Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?All
Ye s®Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
501
EXTERIOR LIGHTING
RIGHT LOW BEAM HEADLAMP CIRCUIT SHORTED TO VOLTAGE Ð
Continued
Page 988 of 4284

Symptom:
FRONT WASH SWITCH INPUT STUCK
POSSIBLE CAUSES
HIGH BEAM/FRONT WASHER SWITCH MUX CIRCUIT SHORTED TO GROUND
MULTI-FUNCTION SWITCH
WIRING HARNESS INSPECTION
FCM
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, select Body, Front Control Module and read the F Washer Switch
state.
Does the DRB display switch state as Closed?All
Ye s®Go To 2
No®Go To 4
2 Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Turn the ignition on.
With the DRB, select Body, Front Control Module and read the F Washer Switch
state.
Does the DRB display switch state as Open?All
Ye s®Replace the Multi-Function Switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the BCM C5 harness connector.
Measure the resistance between ground and the High Beam/Front Washer Switch
MUX circuit.
Is the resistance below 1000.0 ohms?All
Ye s®Repair the High Beam/Front Washer Switch MUX circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
959
WINDSHIELD WIPER & WASHER
Page 1073 of 4284

INSTRUMENT CLUSTER - BLACK 13 WAYCAV CIRCUIT FUNCTION
1 E13 20OR/YL PANEL LAMPS DRIVER
2 L160 20WT/TN (LOW
LINE)RIGHT TURN INDICATOR DRIVER
3 G7 20VT/GY (HIGH LINE) LOW OIL PRESSURE INDICATOR DRIVER
4 G3 20VT/LB (HIGH LINE) MALFUNCTION INDICATOR LAMP DRIVER
5 L134 20WT/GY (HIGH
LINE)HIGH BEAM INDICATOR DRIVER
6 A701 16BR/RD FUSED B(+) (HAZARD)
7 Z108 18BK/LG GROUND
8 L161 20WT/LG (LOW
LINE)LEFT TURN INDICATOR DRIVER
9 D25 20WT/VT PCI BUS
10 B25 20DG/WT (RHD) PARK BRAKE SWITCH SENSE
10 B25 16DG/WT (LHD) PARK BRAKE SWITCH SENSE
11 G26 20VT/OR CHIME DRIVER
12 G150 20VT/BR INSTRUMENT CLUSTER WAKE UP SENSE
13 Z18 18BK/LB GROUND
INTELLIGENT POWER MODULE C1 - LT. GREEN/RED 20 WAYCAV CIRCUIT FUNCTION
1 F301 18VT/PK FUSED ACCESSORY RELAY OUTPUT
2- -
3- -
4 L43 18WT/DB LEFT LOW BEAM DRIVER
5 Z344 16BK/TN GROUND
6 L34 16WT/GY RIGHT HIGH BEAM DRIVER
7 W1 18BR/TN WASHER FLUID LEVEL SWITCH SENSE
8 L33 18WT/LG LEFT HIGH BEAM DRIVER
9 G31 18VT/LG (EXCEPT
BASE)AMBIENT TEMPERATURE SENSOR SIGNAL
10 L44 16WT/TN RIGHT LOW BEAM DRIVER
11 F300 18OR/PK FUSED ACCESSORY RELAY OUTPUT
12 - -
13 Z343 18BK/LG GROUND
14 - -
15 L78 18WT/OR FUSED PARK LAMP RELAY OUTPUT (RIGHT)
16 L77 18WT/BR FUSED PARK LAMP RELAY OUTPUT (LEFT)
17 - -
18 G931 18VT/BR (EXCEPT
BASE)AMBIENT TEMPERATURE SENSOR RETURN
19 W20 18BR/YL REAR WASHER PUMP MOTOR CONTROL
20 W10 18BR FRONT WASHER PUMP MOTOR CONTROL
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
1044
CONNECTOR PINOUTS
Page 1079 of 4284
LEFT FRONT DOOR LOCK MOTOR/AJAR SWITCH (EXCEPT BASE) - BLACK 4 WAYCAV CIRCUIT FUNCTION
1 G75 20VT LEFT FRONT DOOR AJAR SWITCH SENSE
2 Z75 20BK/VT GROUND
3 P1 20TN/LG LEFT FRONT DOOR UNLOCK DRIVER
4 P3 20TN/WT LEFT FRONT DOOR LOCK DRIVER
LEFT FRONT PARK/TURN SIGNAL LAMP (EXCEPT BUILT-UP-EXPORT) - BLACK 3 WAYCAV CIRCUIT FUNCTION
1 L61 18WT/LG LEFT FRONT TURN SIGNAL DRIVER
2 L77 18WT/BR FUSED PARK LAMP RELAY OUTPUT (LEFT)
3 Z377 18BK/BR GROUND
LEFT FULL OPEN SWITCH (POWER SLIDING DOOR) - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 Q53 20OR LEFT FULL OPEN SWITCH SENSE
2 Z77 20BK/GY GROUND
LEFT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLACK 3 WAYCAV CIRCUIT FUNCTION
1 L43 18WT/DB LEFT LOW BEAM DRIVER
2 Z343 18BK/LG GROUND
3 L33 18WT/LG LEFT HIGH BEAM DRIVER
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
1050
CONNECTOR PINOUTS
Page 1080 of 4284
LEFT HIGH BEAM LAMP (BUILT-UP-EXPORT) - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 Z343 16BR GROUND
1 Z343 16BR GROUND
2 L33 16GY LEFT HIGH BEAM DRIVER
LEFT INSTRUMENT PANEL SPEAKER - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 X153 20DG/YL LEFT FRONT I/P SPEAKER (+)
2 X155 20DG/LB LEFT FRONT I/P SPEAKER (-)
LEFT LOW BEAM LAMP (BUILT-UP-EXPORT) - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 Z343 16BR GROUND
2 L43 16WT LEFT LOW BEAM DRIVER
LEFT PARK LAMP (BUILT-UP-EXPORT) - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 Z343 16BR GROUND
2 L77 16BK FUSED PARK LAMP RELAY OUTPUT(LEFT)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
1051
CONNECTOR PINOUTS