Symptom:
DRIVER DOOR LOCK SWITCH INPUT CIRCUIT SHORTED
When Monitored and Set Condition:
DRIVER DOOR LOCK SWITCH INPUT CIRCUIT SHORTED
When Monitored: At all times when battery power is supplied to the Instrument Cluster.
Set Condition: When the Instrument Cluster senses voltage to the driver door lock switch
below .25 volts, the input circuit is not valid and this code will set.
POSSIBLE CAUSES
DTC PRESENT
DOOR LOCK SWITCH SHORTED
DOOR LOCK SWITCH MUX SHORTED
INSTRUMENT CLUSTER - - DRIVER DOOR LOCK SWITCH INPUT SHORTED
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, record and erase DTC’s.
With the DRBIIIt, read DTC’s.
Operate the door locks several times from the Driver Door Lock Switch while
monitoring the DRBIIIt.
Does the DRBIIIt display DR DOOR LOCK SW INPUT CIRCUIT SHORTED?
All
Yes → Go To 2
No → Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2 Disconnect the Driver Door Lock Switch (Driver Door Module C1) connector.
With the DRBIIIt in sensors, read the DRV DOOR LOCK SW MUX circuit.
Is the voltage above 4.6 volts?
All
Yes → Replace the Driver Door Module.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 3
3 Disconnect the Driver Door Lock Switch (Driver Door Module C1) connector.
Disconnect the Instrument Cluster C2. connector.
Measure the resistance between Driver Door Lock Switch Mux circuit and ground.
Is the resistance below 1000.0 ohms?
All
Yes → Repair the Driver Door Lock Switch Mux circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 4
471
POWER DOOR LOCKS/RKE
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