Dodge Ram Truck 1500-2500-3500. Manual — part 447

*RIGHT REAR DOOR AJAR CIRCUIT OPEN (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

OPEN (Z72) RIGHT REAR DOOR AJAR SWITCH GROUND CIRCUIT

OPEN (G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT

OPEN RIGHT REAR DOOR AJAR SWITCH

INSTRUMENT CLUSTER

Diagnostic Test

1.

OPEN RIGHT REAR DOOR AJAR SWITCH

Disconnect the Right Rear Door Latch connector.

Connect a jumper wire between the (G76) Sense circuit and the (Z72)
Ground circuit.

With the DRBIII

T

in Inputs/Outputs, read the R R DOOR AJAR SW

state.

Does the DRBIII

T

display CLOSED?

Yes

>> Replace the Right Rear 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.

OPEN (Z72) RIGHT REAR DOOR AJAR SWITCH GROUND CIRCUIT

Using a 12-volt Test Light connected to 12-volts, test the (Z72) Ground
circuit in the Door Latch connector.

Does the test light illuminate brightly?

Yes

>> Go To 3

No

>> Repair the (Z72) Right Rear Door Ajar Switch Ground cir-

cuit for an open.

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

ELECTRICAL/ELECTRONIC

CONTROL

MODULES/

FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

8L - 194

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

DR/DH

*RIGHT REAR DOOR AJAR CIRCUIT OPEN (CONTINUED)

3.

OPEN (G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT

Disconnect the Instrument Cluster C3 harness connector.

Measure the resistance of the (G76) Right Rear 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 (G76) Right Rear 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 TEST-
ING)

DR/DH

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

8L - 195

*RIGHT REAR DOOR AJAR CIRCUIT SHORTED TO GROUND

8L - 196

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

DR/DH

*RIGHT REAR 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

(G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND

RIGHT REAR DOOR AJAR SWITCH

INSTRUMENT CLUSTER

Diagnostic Test

1.

RIGHT REAR DOOR AJAR SWITCH SHORT TO GROUND

With the DRBIII

T

in Inputs/Outputs, read the R R DOOR AJAR SW

state.

While monitoring the DRBIII

T

, disconnect the Right Rear Door Latch

connector.

Did the Switch State change from CLOSED to OPEN?

Yes

>> Replace the Right Rear Door Ajar Switch.

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.

(G76) RIGHT REAR DOOR AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND

Disconnect the Instrument Cluster C3 harness connector.

Using a 12-volt test light connected to 12-volts, probe the (G76) Right
Rear Door Ajar Switch Sense circuit and test for a short to ground.

Does the test light illuminate brightly?

Yes

>> Repair the (G76) Right Rear 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 TEST-
ING).

DR/DH

LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS

8L - 197