TEST ACTION APPLICABILITY
3 Disconnect the Left Power Mirror connector.
NOTE: Check connectors - Clean/repair as necessary.
With the DRBIIIt, erase DTC's.
Operate the Power Folding Mirror switch.
With the DRBIIIt, read DTCs.
Does the same DTC reset?All
Ye s®Go To 4
No®Replace the Left Power Mirror.
Perform BODY VERIFICATION TEST - VER 1.
4 Disconnect the Right Power Mirror connector.
NOTE: Check connectors - Clean/repair as necessary.
With the DRBIIIt, erase DTC's.
Operate the Power Folding Mirror switch.
With the DRBIIIt, read DTCs.
Does the same DTC reset?All
Ye s®Go To 5
No®Replace the Right Power Mirror.
Perform BODY VERIFICATION TEST - VER 1.
5 Disconnect the Left and Right Power Mirror connectors.
Disconnect the Body Control Module C2 connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure for unwanted voltage on the Driver Folding Mirror Fold Driver circuit in the
BCM C2 connector.
Is there any voltage present?All
Ye s®Repair the Driver Folding Mirror Fold Driver circuit for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 6
6 Disconnect the Left and Right Power Mirror connectors.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure for unwanted voltage on the Passenger Folding Mirror Relay Output circuit
in the relay connector.
Is there any voltage present?All
Ye s®Repair the Passenger Folding Mirror Relay Output circuit for a
short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 7
7 Disconnect the Body Control Module C2 connector.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure for unwanted voltage on the Passenger Folding Mirror Relay Input circuit
in the relay connector.
Is there any voltage present?All
Ye s®Repair the Passenger Folding Mirror Relay Input circuit for a
short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 8
914
POWER MIRROR ± FOLDING
UNFOLD MIRROR OUTPUT FAILURE ÐContinued
TEST ACTION APPLICABILITY
8 Disconnect the Left and Right Power Mirror connectors.
Disconnect the Body Control Module C2 connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Driver Folding Mirror Fold Driver
circuit in the BCM C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Driver Folding Mirror Fold Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 9
9 Disconnect the Left and Right Power Mirror connectors.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Passenger Folding Mirror Relay
Output circuit in the relay connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Passenger Folding Mirror Relay Output circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 10
10 Disconnect the Body Control Module C2 connector.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Passenger Folding Mirror Relay
Input circuit in the relay connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Passenger Folding Mirror Relay Input circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
915
POWER MIRROR ± FOLDING
UNFOLD MIRROR OUTPUT FAILURE ÐContinued
Symptom:
*DRIVER FOLDING MIRROR DOES NOT FOLD
POSSIBLE CAUSES
RELATED DIAGNOSTIC TROUBLE CODES
POWER MIRROR
FOLDING MIRROR UNFOLD DRIVER CIRCUIT OPEN
DRIVER FOLDING MIRROR FOLD DRIVER CIRCUIT OPEN
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, read Body Computer DTCs.
Does the DRBIIItdisplay any related DTC's?All
Ye s®Refer to symptom list for problems related to Power Folding
Mirrors.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Disconnect the inoperative Power Mirror connector.
NOTE: Check connectors - Clean/repair as necessary.
Connect one lead of a test light to the Passenger Folding Mirror Relay Output circuit
and the other lead to the appropriate Folding Mirror Unfold Driver in the power
mirror harness connector.
With the DRBIIIt, actuate the Folding Mirrors.
Does the test light illuminate brightly?All
Ye s®Replace the appropriate Power Mirror.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Disconnect the inoperative Power Mirror connector.
Disconnect the Body Control Module C2 connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the appropriate Folding Mirror Unfold Driver circuit from the BCM C2
connector to the power mirror harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the appropriate Folding Mirror Unfold Driver circuit for
an open.
Perform BODY VERIFICATION TEST - VER 1.
918
POWER MIRROR ± FOLDING
Symptom:
*PASSENGER FOLDING MIRROR DOES NOT FOLD
POSSIBLE CAUSES
RELATED DIAGNOSTIC TROUBLE CODES
PASSENGER FOLDING MIRROR RELAY
POWER MIRROR
FOLDING MIRROR UNFOLD DRIVER CIRCUIT OPEN
PASSENGER FOLDING MIRROR RELAY OUTPUT CIRCUIT OPEN
PASSENGER FOLDING MIRROR RELAY INPUT CIRCUIT OPEN
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, read Body Computer DTCs.
Does the DRBIIItdisplay any related DTC's?All
Ye s®Refer to symptom list for problems related to Power Folding
Mirrors.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Disconnect the Passenger Folding Mirror Relay.
Check connectors - Clean/repair as necessary.
Connect a substitute relay in place of the Passenger Folding Mirror Relay.
NOTE: Doors must be closed to allow the mirrors to fold with the power folding
mirror switch.
Attempt to operate the power folding mirror system with the power folding mirror
switch and by opening and closing both front doors with mirrors folded.
Does the system now operate properly?All
Ye s®Replace the Passenger Folding Mirror Relay.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Connect Passenger Folding Mirror Relay if disconnected in previous step.
Disconnect the inoperative Power Mirror connector.
NOTE: Check connectors - Clean/repair as necessary.
Connect one lead of a test light to the Passenger Folding Mirror Relay Output circuit
and the other lead to the appropriate Folding Mirror Unfold Driver in the power
mirror harness connector.
With the DRBIIIt, actuate the Folding Mirrors.
Does the test light illuminate brightly?All
Ye s®Replace the appropriate Power Mirror.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
920
POWER MIRROR ± FOLDING
TEST ACTION APPLICABILITY
4 Disconnect the inoperative Power Mirror connector.
Disconnect the Body Control Module C2 connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the appropriate Folding Mirror Unfold Driver circuit from the BCM C2
connector to the power mirror harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 5
No®Repair the appropriate Folding Mirror Unfold Driver circuit for
an open.
Perform BODY VERIFICATION TEST - VER 1.
5 Disconnect the inoperative Power Mirror connector.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure the Passenger Folding Mirror Relay Output circuit from the relay connector
to the mirror harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 6
No®Repair the Passenger Folding Mirror Relay Output circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
6 Disconnect the Body Control Module C2 connector.
Disconnect the Passenger Folding Mirror Relay.
NOTE: Check connectors - Clean/repair as necessary.
Measure the Passenger Folding Mirror Relay Input circuit from the relay connector
to the BCM C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Passenger Folding Mirror Relay Input circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
921
POWER MIRROR ± FOLDING
*PASSENGER FOLDING MIRROR DOES NOT FOLD ÐContinued
Symptom:
HORN INPUT STUCK
When Monitored and Set Condition:
HORN INPUT STUCK
When Monitored: Continuously with the ignition on.
Set Condition: The FCM has detected a fault in the Horn Switch Sense circuit.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
INTERMITTENT CONDITION
HORN SWITCH SENSE CIRCUIT SHORTED TO GROUND
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: HORN INPUT STUCK?All
Ye s®Go To 2
No®The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition.
Perform VTSS VERIFICATION TEST - 1A.
2 Turn the ignition off.
Disconnect the Front Control Module from the Fuse and Relay Center.
Measure the resistance between ground and the Horn Switch Sense circuit at the
Fuse and Relay Center side of the FCM connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Replace the Front Control Module.
Perform VTSS VERIFICATION TEST - 1A.
3 Turn the ignition off.
Disconnect connector C7 on the Fuse and Relay Center.
Measure the resistance between ground and the Horn Switch Sense circuit at the
Fuse and Relay Center C7 connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Horn Switch Sense circuit for a short to ground.
Perform VTSS VERIFICATION TEST - 1A.
No®Replace the Fuse and Relay Center.
Perform VTSS VERIFICATION TEST - 1A.
923
VEHICLE THEFT/SECURITY
Symptom:
HORN RELAY OPEN
When Monitored and Set Condition:
HORN RELAY OPEN
When Monitored: Continuously with the ignition on.
Set Condition: The FCM has detected an open in the Horn Relay Control circuit.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
INTERMITTENT CONDITION
HORN RELAY
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: HORN RELAY OPEN?All
Ye s®Go To 2
No®The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition.
Perform VTSS VERIFICATION TEST - 1A.
2 Turn the ignition off.
Disconnect the Front Control Module from the Fuse and Relay Center.
Measure the voltage of the Horn Relay Control circuit at the Fuse and Relay Center
side of the FCM connector.
Is the voltage above 10.0 volts?All
Ye s®Replace the Front Control Module.
Perform VTSS VERIFICATION TEST - 1A.
No®Go To 3
3 Turn the ignition off.
Disconnect the Horn Relay from the Fuse and Relay Center.
Measure the resistance of the Horn Relay Control circuit between the FCM connector
cavity 10 and the Horn Relay connector cavity 85.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Horn Relay.
Perform VTSS VERIFICATION TEST - 1A.
No®Replace the Fuse and Relay Center.
Perform VTSS VERIFICATION TEST - 1A.
924
VEHICLE THEFT/SECURITY
Symptom:
HORN RELAY SHORTED TO BATTERY
When Monitored and Set Condition:
HORN RELAY SHORTED TO BATTERY
When Monitored: Continuously with the ignition on.
Set Condition: The FCM has detected a short to battery in the Horn Relay Control circuit.
POSSIBLE CAUSES
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
HORN RELAY
INTERMITTENT CONDITION
FRONT CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: HORN RELAY SHORTED TO BATTERY?All
Ye s®Go To 2
No®The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition.
Perform VTSS VERIFICATION TEST - 1A.
2 Turn the ignition off.
Disconnect the Horn Relay from the Fuse and Relay Center.
Substitute the original Horn Relay with a known good relay.
Turn the ignition on.
Attempt to operate the horn.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: HORN RELAY SHORTED TO BATTERY?All
Ye s®Go To 3
No®Replace the Horn Relay.
Perform VTSS VERIFICATION TEST - 1A.
925
VEHICLE THEFT/SECURITY