Symptom:
*ALL LOCKS INOPERATIVE FROM A DOOR LOCK SWITCH
POSSIBLE CAUSES
DTC PRESENT
DOOR SWITCH GROUND WIRE OPEN
DOOR SWITCH MUX WIRE SHORT TO VOLTAGE
DOOR SWITCH MUX WIRE OPEN
DOOR LOCK SWITCH - OPEN
REMOTE KEYLESS ENTRY MODULE - HIGH VOLTAGE
REMOTE KEYLESS ENTRY MODULE - LOW VOLTAGE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, read DTCs.
Are there any POWER DOOR LOCK related Trouble Codes?
All
Yes → Refer to symptom list for problems related to POWER DOOR
LOCKS.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 2
2 With the DRBIIIt in Sensors, read the appropriate DOOR LOCK SW voltage..
Select the reading found:
All
Between 0.0 and 3.7 volts.
Replace the Remote Keyless Entry module.
Perform BODY VERIFICATION TEST - VER 1.
Between 4.9 and 5.5 volts.
Go To 3
Above 5.6 volts.
Go To 6
3 Turn the ignition off.
Disconnect the Door Lock Switch connector.
Measure the resistance between ground and the Ground circuit in the appropriate
Door Lock Switch connector..
Is the resistance below 5.0 ohms?
All
Yes → Go To 4
No → Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
200
POWER DOOR LOCKS/RKE