Dodge Ram Truck 1500-2500-3500. Manual — part 469
DRIVER CYLINDER LOCK SWITCH INPUT CIRCUIT SHORTED (WITH VTSS ONLY) (CONTINUED)
For the Power Door Locks circuit diagram (Refer to 8 - ELECTRICAL/POWER LOCKS - SCHEMATICS AND DIA-
GRAMS).
For a complete wiring diagram Refer to Section 8W.
•
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 cylinder lock switch below 0.25 volts for over 10
seconds.
Possible Causes
(G163) DRIVER CYLINDER LOCK SWITCH MUX CIRCUIT SHORT TO GROUND
CYLINDER LOCK SWITCH SHORTED
INSTRUMENT CLUSTER
Diagnostic Test
1.
DTC PRESENT
Turn the ignition on.
With the DRBIII
T
, record and erase DTC’s.
With the DRBIII
T
, read DTC’s.
Operate the door locks several times from the Driver
Cylinder Lock Switch by cycling the key clockwise
while monitoring the DRBIII
T
.
Does the DRBIII
T
display DRIVER CYL LOCK SW
INPUT CIRCUIT SHORTED?
Yes
>> Go To 2
No
>> Using the wiring diagram/schematic as a
guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST -
VER 1. (Refer to 8 - ELECTRICAL/ELEC-
TRONIC
CONTROL
MODULES/FRONT
CONTROL MODULE - DIAGNOSIS AND
TESTING)
8N - 18
POWER LOCKS - ELECTRICAL DIAGNOSTICS
DR/DH
DRIVER CYLINDER LOCK SWITCH INPUT CIRCUIT SHORTED (WITH VTSS ONLY) (CONTINUED)
2.
CYLINDER LOCK SWITCH SHORTED
Disconnect the Driver Cylinder Lock Switch connector.
With the DRBIII
T
in Sensors, read the DRV CYL LOCK SW MUX cir-
cuit
Is the voltage above 4.8 volts?
Yes
>> Replace the Cylinder Lock Switch.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
No
>> Go To 3
3.
(G163) DRIVER CYLINDER LOCK SWITCH MUX SHORTED
Disconnect the Driver Cylinder Lock Switch connector.
Disconnect the Instrument Cluster C2. connector.
Measure the resistance between (G163) Driver Cylinder Lock Switch
Mux circuit and ground.
Is the resistance below 1000.0 ohms?
Yes
>> Repair the (G163) Driver Cylinder Lock Switch Mux circuit
for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
No
>> Replace the Instrument Cluster. Perform BODY VERIFI-
CATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELEC-
TRONIC
CONTROL
MODULES/FRONT
CONTROL
MODULE - DIAGNOSIS AND TESTING)
DR/DH
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 19
DRIVER CYLINDER LOCK SWITCH INPUT STUCK (WITH VTSS ONLY)
8N - 20
POWER LOCKS - ELECTRICAL DIAGNOSTICS
DR/DH
DRIVER CYLINDER LOCK SWITCH INPUT STUCK (WITH VTSS ONLY) (CONTINUED)
For the Power Door Locks circuit diagram. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/FRONT
CONTROL MODULE - DIAGNOSIS AND TESTING)
For a complete wiring diagram Refer to Section 8W.
•
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 cylinder lock switch between 1.3 and 3.75 volts for
over 10 seconds.
Possible Causes
DRIVER CYLINDER LOCK SWITCH MUX CIRCUIT PARTIAL SHORT TO GROUND
CYLINDER LOCK SWITCH STUCK
INSTRUMENTT CLUSTER
Diagnosttic Test
1.
DTC PRESENT
Turn the ignition on.
With the DRBIII
T
, record and erase DTC’s.
With the DRBIII
T
, read DTC’s.
Operate the door locks several times from the Driver
Cylinder Lock Switch by cycling the key in both direc-
tions while monitoring the DRBIII
T
.
Does the DRBIII
T
display DRV CYL LOCK SW
INPUT CIRCUIT STUCK?
Yes
>> Go To 2
No
>> Using the wiring diagram/schematic as a
guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST -
VER 1. (Refer to 8 - ELECTRICAL/ELEC-
TRONIC
CONTROL
MODULES/FRONT
CONTROL MODULE - DIAGNOSIS AND
TESTING)
2.
CYLINDER LOCK SWITCH SHORTED
With the DRBIII
T
in Sensors, read the DRV CYL LOCK SW MUX circuit
Does the DRBIII
T
display voltage between 1.3 and 4.15 volts?
No
>> Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)
Yes
>> Go To 3
DR/DH
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 21
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