Page 921 of 4284
TEST ACTION APPLICABILITY
4 Disconnect the B-Pillar Switch connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit in the
B-Pillar Switch connector.
Does the test light illuminate brightly?All
Ye s®Go To 5
No®Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5 Disconnect the Body Control Module C3 connector.
Disconnect the Left B-Pillar Switch connector.
Measure the resistance of the Left Sliding Door Pillar Switch Mux circuit between
the BCM C3 connector and the Left B-Pillar Switch connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 6
No®Repair the Left Sliding Door Pillar Switch Mux wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
6 If there are no possible causes remaining, view repair. All
Repair
Replace the B-Pillar Switch.
Perform BODY VERIFICATION TEST - VER 1.
892
POWER DOORS - SLIDING
LEFT B-PILLAR SWITCH INPUT OPEN ÐContinued
Page 922 of 4284

Symptom:
LEFT B-PILLAR SWITCH INPUT SHORT
When Monitored and Set Condition:
LEFT B-PILLAR SWITCH INPUT SHORT
When Monitored: Continuously when the BCM is awake.
Set Condition: When the BCM senses a B-pillar switch input less than .24 volts for over
10 seconds.
POSSIBLE CAUSES
DTC PRESENT
LEFT B-PILLAR SWITCH SHORTED
LEFT SLIDING DOOR PILLAR SWITCH MUX WIRE SHORT TO GROUND
BODY CONTROL MODULE - LEFT SLIDING DOOR PILLAR SWITCH CIRCUIT SHORTED
TEST ACTION APPLICABILITY
1 With the DRBIIIt, record and erase DTC's.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the left power sliding door from the Left B-Pillar Switch.
With the DRBIIIt, read DTCs.
Does the DRBIIItdisplay LEFT B-PILLAR SWITCH INPUT SHORT?All
Ye s®Go To 2
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Disconnect the Left B-Pillar Switch connector.
With the DRBIIIt, erase DTCs.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Wait 10 seconds.
With the DRBIIIt, read DTCs.
Does the DRBIIItdisplay LEFT B-PILLAR SWITCH INPUT OPEN?All
Ye s®Replace the B-Pillar Switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Disconnect the Body Control Module C3 connector.
Disconnect the Left B-Pillar Switch connector.
Measure the resistance of the Left Sliding Door Pillar Switch Mux circuit to ground.
Is the resistance below 1000.0 ohms?All
Ye s®Repair the Left Sliding Door Pillar Switch Mux wire for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
893
POWER DOORS - SLIDING
Page 923 of 4284

Symptom:
LEFT B-PILLAR SWITCH INPUT STUCK
When Monitored and Set Condition:
LEFT B-PILLAR SWITCH INPUT STUCK
When Monitored: Continuously when the BCM is awake.
Set Condition: When the BCM senses an active B-pillar switch input for over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
LEFT B-PILLAR SWITCH SHORTED
LEFT SLIDING DOOR PILLAR SWITCH MUX WIRE SHORT TO GROUND
BODY CONTROL MODULE - LEFT SLIDING DOOR PILLAR SWITCH CIRCUIT SHORTED
TEST ACTION APPLICABILITY
1 With the DRBIIIt, record and erase DTC's.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the left power sliding door from the Left B-Pillar Switch.
With the DRBIIIt, read DTCs.
Does the DRBIIItdisplay LEFT B-PILLAR SWITCH INPUT STUCK?All
Ye s®Go To 2
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Disconnect the Left B-Pillar Switch connector.
With the DRBIIIt, erase DTCs.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Wait 10 seconds.
With the DRBIIIt, read DTCs.
Does the DRBIIItdisplay LEFT B-PILLAR SWITCH INPUT OPEN?All
Ye s®Replace the B-Pillar Switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 Disconnect the Body Control Module C3 connector.
Disconnect the Left B-Pillar Switch connector.
Measure the resistance of the Left Sliding Door Pillar Switch Mux circuit to ground.
Is the resistance below 10000.0 ohms?All
Ye s®Repair the Left Sliding Door Pillar Switch Mux wire for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
894
POWER DOORS - SLIDING
Page 924 of 4284
Symptom:
LOOPBACK TEST FAILURE
When Monitored and Set Condition:
LOOPBACK TEST FAILURE
When Monitored: Anytime the Power Sliding Door Module is awake.
Set Condition: The Power Sliding Door Module did not receive its own transmitted
message on the PCI bus back (loopback) for longer than 1 second.
POSSIBLE CAUSES
DTC PRESENT
POWER SLIDING DOOR MODULE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, record and erase DTC's.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the power sliding door several times from stop to stop if possible.
With the DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay LOOPBACK TEST FAILURE?All
Ye s®Replace the Power Sliding Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition. Operate the
door several times and check for any binding conditions.
Perform BODY VERIFICATION TEST - VER 1.
895
POWER DOORS - SLIDING
Page 925 of 4284
Symptom:
LOSS OF BCM MESSAGES
When Monitored and Set Condition:
LOSS OF BCM MESSAGES
When Monitored: Whenever the ignition is on.
Set Condition: If the PSD Module losses communication with the BCM for over 5 seconds,
this code will set.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BODY CONTROL MODULE
POWER SLIDING DOOR MODULE - LOSS OF BCM MESSAGES
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, enter Body then Body Computer.
Was the DRBIIItable to I/D or communicate with the BCM?All
Ye s®Go To 2
No®Refer to the Communication category for the related symptom(s).
2 With the DRBIIIt, erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIIIt, read DTC's.
Did this DTC reset?All
Ye s®Replace the Power Sliding Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
896
POWER DOORS - SLIDING
Page 926 of 4284
Symptom:
LOSS OF EATX MESSAGES
When Monitored and Set Condition:
LOSS OF EATX MESSAGES
When Monitored: Whenever the ignition is on.
Set Condition: If the PSD Module does not receive a PRNDL message for over 5 seconds,
this code will set.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE TRANSMISSION CONTROL MODULE
POWER SLIDING DOOR MODULE - LOSS OF EATX MESSAGES
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, select Transmission.
Was the DRBIIItable to I/D or communicate with the Transmission?All
Ye s®Go To 2
No®Refer to the Communication category for the related symptom(s).
2 With the DRBIIIt, erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIIIt, read DTC's.
Did this DTC reset?All
Ye s®Replace the Power Sliding Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
897
POWER DOORS - SLIDING
Page 927 of 4284
Symptom:
LOSS OF FCM MESSAGES
When Monitored and Set Condition:
LOSS OF FCM MESSAGES
When Monitored: Whenever the ignition is in the RUN position and the PRNDL is not in
PARK position.
Set Condition: If the PSD Module does not receive a temperature message from the Front
Control Module for over 5 seconds, this code will set.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE FRONT CONTROL MODULE
POWER SLIDING DOOR MODULE - LOSS OF FCM MESSAGES
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, enter Body then Front Control Module.
Was the DRBIIItable to I/D or communicate with the FCM?All
Ye s®Go To 2
No®Refer to the Communication category for the related symptom(S).
2 With the DRBIIIt, erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIIIt, read DTC's.
Did this DTC reset?All
Ye s®Replace the Power Sliding Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
898
POWER DOORS - SLIDING
Page 928 of 4284
Symptom:
LOSS OF SBEC MESSAGES
When Monitored and Set Condition:
LOSS OF SBEC MESSAGES
When Monitored: Whenever the ignition is in RUN position and the PRNDL is not in
PARK position.
Set Condition: If the PSD Module does not receive a speed message from the Powertrain
Control Module for over 5 seconds, this code will set.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE POWERTRAIN CONTROL MODULE
POWER SLIDING DOOR MODULE - LOSS OF SBEC MESSAGES
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, select Engine.
Was the DRBIIItable to I/D or communicate with the Transmission?All
Ye s®Go To 2
No®Refer to the Communication category for the related symptom(s).
2 With the DRBIIIt, erase DTC's.
Cycle the ignition switch from OFF to RUN and wait approximately 1 minute.
With the DRBIIIt, read DTC's.
Did this DTC reset?All
Ye s®Replace the Power Sliding Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Test Complete.
899
POWER DOORS - SLIDING