Dodge Ram Truck 1500-2500-3500. Manual — part 446

*PASSENGER DOOR AJAR CIRCUIT OPEN (CONTINUED)

3.

OPEN (G74) PASSENGER DOOR AJAR SWITCH SENSE CIRCUIT

Turn the ignition off.

Disconnect the Instrument Cluster C3 harness connector.

Measure the resistance of the (G74) Passenger Door Ajar Switch
Sense circuit between the Instrument Cluster connector and the Door
Latch connector.

Is the resistance below 5.0 ohms?

Yes

>> Replace the Instrument Cluster.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-

ELECTRICAL/ELECTRONIC

CONTROL

MODULES/

FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

No

>> Repair the (G74) Passenger Door Ajar Switch Sense cir-

cuit for an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-

ELECTRICAL/ELECTRONIC

CONTROL

MODULES/

FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)

8L - 190

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

DR/DH

*PASSENGER DOOR AJAR CIRCUIT SHORTED TO GROUND

DR/DH

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

8L - 191

*PASSENGER DOOR AJAR CIRCUIT SHORTED TO GROUND (CONTINUED)

For the Door Ajar System circuit diagram (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - INTERIOR - SCHEMAT-
ICS AND DIAGRAMS).

For a complete wiring diagram Refer to Section 8W.

Possible Causes

(G74) PASSENGER DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND

PASSENGER DOOR AJAR SWITCH

INSTRUMENT CLUSTER

Diagnostic Test

1.

PASSENGER DOOR AJAR SWITCH SHORT TO GROUND

With the DRBIII

T

in Inputs/Outputs, read the PASS DOOR AJAR SW

state.

While monitoring the DRBIII

T

, disconnect the Passenger Door Latch

connector.

Did the Switch State change from CLOSED to OPEN?

Yes

>> Replace the Passenger Door Latch.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
-

ELECTRICAL/ELECTRONIC

CONTROL

MODULES/

FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING.

No

>> Go To 2

2.

(G74) PASSENGER DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND

Turn the ignition off.

Disconnect the Instrument Cluster C3 harness connector.

Using a 12-volt test light connected to 12-volts, probe the (G74) Pas-
senger Door Ajar Switch Sense circuit and test for a short to ground.

Turn the ignition on.

Does the test light illuminate brightly?

Yes

>> Repair the (G74) Passenger Door Ajar Switch Sense cir-

cuit 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 VERIFICATION TEST - VER 1. (Refer to 8
-

ELECTRICAL/ELECTRONIC

CONTROL

MODULES/

FRONT CONTROL MODULE - DIAGNOSIS AND TESTING).

8L - 192

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

DR/DH

*RIGHT REAR DOOR AJAR CIRCUIT OPEN

DR/DH

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

8L - 193