Dodge Ram Truck 1500-2500-3500. Manual — part 467
ALL DOOR UNLOCK OUTPUT CIRCUIT SHORT TO GROUND OR VOLTAGE (CONTINUED)
4.
(G778) DOOR UNLOCK DRIVER RIGHT DOORS CIRCUIT SHORT TO GROUND
Measure the resistance between ground and the (G778) Door Unlock
Driver Right Doors circuit in the Instrument Cluster C1 connector.
Is the resistance below 1000.0 ohms?
Yes
>> Repair the (G778) Door Unlock Driver Right Doors circuit
for a short to ground. The short may be in the (G778)
Door Unlock Driver Right Doors wire, the (P392) Door
Lock Driver Right Doors wire or a right side door lock
motor.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
No
>> Go To 5
5.
(P5) DOOR UNLOCK DRIVER LEFT REAR CIRCUIT SHORT TO GROUND
NOTE: If this is a 2 door vehicle, answer NO to the question and
continue.
Measure the resistance between ground and the (P5) Door Unlock
Driver Left Rear circuit in the Instrument Cluster C1 connector.
Is the resistance below 1000.0 ohms?
Yes
>> Repair the (P5) Door Unlock Driver Left Rear circuit for a
short to ground. The short may be in the (P5) Door Unlock
Driver Left Rear wire, the (P393) Door Lock Driver Left
Doors wire or in a left side door lock motor.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
No
>> Go To 6
8N - 10
POWER LOCKS - ELECTRICAL DIAGNOSTICS
DR/DH
ALL DOOR UNLOCK OUTPUT CIRCUIT SHORT TO GROUND OR VOLTAGE (CONTINUED)
6.
(G778) DOOR UNLOCK DRIVER RIGHT DOORS SHORT TO VOLTAGE
Turn the ignition on.
Measure the voltage between ground and the (G778) Door Unlock
Driver Right Doors circuit.
Is there any voltage present?
Yes
>> Repair the (P392) Door Lock or (G778) Door Unlock
Driver Right Doors circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
No
>> Go To 7
7.
(P5) DOOR UNLOCK DRIVER LEFT REAR SHORT TO VOLTAGE
NOTE: If this a 2 Door vehicle, answer NO to the question and
continue.
Measure the voltage between ground and the (P5) Door Unlock Driver
Left Rear circuit.
Is there any voltage present?
Yes
>> Repair the (P393) Door Lock Driver Left Doors or the (P5)
Door Unlock Driver Left Rear circuit for a short to voltage.
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 VERIFICATION TEST - VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
DR/DH
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 11
DRIVER DOOR UNLOCK OUTPUT CIRCUIT SHORT TO GROUND OR VOLTAGE
8N - 12
POWER LOCKS - ELECTRICAL DIAGNOSTICS
DR/DH
DRIVER DOOR UNLOCK OUTPUT CIRCUIT SHORT TO GROUND OR VOLTAGE (CONTINUED)
For the Power Door Lock circuit diagram (Refer to 8 - ELECTRICAL/POWER LOCKS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Whenever the instrument cluster is awake.
•
Set Condition:
The instrument cluster monitors the driver door unlock output circuit and when it is shorted to ground or to
voltage, this code will set. This code will only set when the door locks are actuated.
Possible Causes
(P393) DOOR LOCK DRIVER LEFT DOORS SHORTED TO (P1) DOOR UNLOCK DRIVER LEFT FRONT
(P1) DOOR UNLOCK DRIVER LEFT FRONT WIRE SHORT TO GROUND
(P393) DOOR LOCK DRIVER LEFT DOORS WIRE SHORT TO GROUND
(P393) DOOR LOCK DRIVER LEFT DOORS WIRE SHORTED TO VOLTAGE
(P1) DOOR LOCK DRIVER LEFT FRONT WIRE SHORTED TO VOLTAGE
DRIVER DOOR LATCH
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 a door lock
switch while monitoring the DRBIII
T
.
Does
the
DRBIII
T
display
DRIVER
DOOR
UNLOCK OUTPUT CIRCUIT SHORT TO GROUND
OR VOLTAGE?
Yes
>> Go To 2
No
>> Using the wiring diagram/schematic as a
guide, inspect the wiring and connectors.
Check for any possible shorted conditions
between the instrument cluster and the
driver door lock motor.
Perform BODY VERIFICATION TEST -
VER 1. (Refer to 8 - ELECTRICAL/ELEC-
TRONIC
CONTROL
MODULES/FRONT
CONTROL MODULE - DIAGNOSIS AND
TESTING)
DR/DH
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 13
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