Dodge Dakota (R1). Manual — part 60
Symptom:
*PRNDL INDICATOR MALFUNCTION (4.7L)
POSSIBLE CAUSES
*PCI BUS COMMUNICATIONS - INSTRUMENT CLUSTER
*OBSERVE THE PRNDL INDICATORS
*MONITOR THE PRNDL INDICATOR WHILE SHIFTING GEARS
*INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, select Body, then Electro/Mech Cluster.
Was the DRBIII
t able to communicate with the Instrument Cluster?
All
Yes
→
No
→
Refer to the COMMUNICATION category and perform the ap-
propriate symptom.
2
Observe the PRNDL indicators while cycling the ignition from the off to the on
position.
Did all of the indicators illuminate?
All
Yes
→
No
→
Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition on.
With the DRBIII
t, select Trans, Monitor Display, Shift Lever, then SLP.
Monitor the Shift Lever status.
NOTE: Engage the Park Brake before proceeding.
Move the gear shift lever through all of the different positions.
Does the SLP reading match the state of the transmission gear?
All
Yes
→
Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Refer to the TRANSMISSION category and perform the appro-
priate symptom..
237
INSTRUMENT CLUSTER
Symptom:
*SEAT BELT INDICATOR ALWAYS OFF
POSSIBLE CAUSES
*SEAT BELT SWITCH SHORTED
*SEAT BELT INDICATOR DRIVER CIRCUIT SHORT TO GROUND
*INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any Airbag Control Module (ACM) DTCs before
proceeding with this test.
Turn the ignition off.
Disconnect the Seat Belt Switch harness connector.
Check connectors - Clean/repair as necessary.
Turn the ignition on.
Observe the Seat Belt Indicator after the Instrument Cluster completes the bulb
check.
Does the indicator illuminate?
All
Yes
→
Replace the Seat Belt Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→
2
Turn the ignition off.
Disconnect the Seat Belt Switch harness connector.
Disconnect the Instrument Cluster C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Seat Belt Indicator Driver circuit to ground.
Does the resistance measure less than 5.0 ohms?
All
Yes
→
Repair the short to ground in the Seat Belt Indicator Driver
circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
238
INSTRUMENT CLUSTER
Symptom:
*SEAT BELT INDICATOR ALWAYS ON
POSSIBLE CAUSES
*SEAT BELT SWITCH OPEN
*SEAT BELT SWITCH GROUND CIRCUIT OPEN
*SEAT BELT INDICATOR DRIVER CIRCUIT OPEN
*INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Seat Belt Switch harness connector.
Check connectors - Clean/repair as necessary.
Connect a jumper wire between cavity 1 and cavity 2.
Turn the ignition on.
Observe the Seat Belt Indicator after the Instrument Cluster completes the bulb
check.
Does the indicator remain illuminated?
All
Yes
→
No
→
Replace the Seat Belt Switch.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Seat Belt Switch harness connector.
Check connectors - Clean/repair as necessary.
Using a 12-volt test light connected to 12-volts, check the Seat Belt Switch Ground
circuit.
Does the test light illuminate brightly?
All
Yes
→
No
→
Repair the open in the Seat Belt Switch Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Seat Belt Switch harness connector.
Disconnect the Instrument Cluster C2 harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance of the Seat Belt Indicator Driver circuit.
Does the resistance measure more than 5.0 ohms?
All
Yes
→
Repair the open in the Seat Belt Indicator Driver circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
239
INSTRUMENT CLUSTER
Symptom:
*CARGO LAMPS INOPERATIVE
POSSIBLE CAUSES
CARGO LAMP SWITCH SENSE CIRCUIT OPEN
CARGO LAMP DRIVER CIRCUIT SHORT TO GROUND
HEAD LAMP SWITCH OUTPUT CIRCUIT SHORT TO GROUND
HEADLAMP SWITCH
CENTRAL TIMER MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Connect a jumper wire from the Cargo Lamp Switch Sense Circuit and ground.
Do the Cargo Lamps come on?
All
Yes
→
Repair the Cargo Lamp Switch Sense Circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→
2
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Connect a jumper wire from the Headlamp Switch Output Circuit and ground.
Do the Cargo Lamps come on?
All
Yes
→
Repair the Headlamp Switch Output Circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
3
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Disconnect the Central Timer Module harness connector.
Measure the resistance between the Cargo Lamp Driver Circuit and ground.
Is the resistance below 100.0 ohms?
All
Yes
→
Repair the Cargo Lamp Driver Circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
4
Turn the ignition off.
Disconnect the Headlamp Switch harness connector and remove the Headlamp
Switch.
Turn the Headlamp Switch off. Turn the Courtesy Lamp Switch off.
Measure the resistance between the Interior Lamp Defeat Circuit and the remaining
Headlamp Switch connector terminals.
Measure the resistance between the Cargo Lamp Switch Sense Circuit and the
remaining terminals.
Is the resistance below 100.0 ohms for any of the measurements?
All
Yes
→
Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Central Timer Module.
Perform BODY VERIFICATION TEST - VER 1.
240
INTERIOR LIGHTING
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