Dodge Dakota (R1). Manual — part 47
Symptom:
*PARK LAMPS WILL NOT TURN OFF
POSSIBLE CAUSES
PARK LAMP SWITCH SENSE CIRCUIT SHORT TO GROUND
PARK LAMP RELAY OUTPUT CIRCUIT SHORT TO VOLTAGE
HEADLAMP SWITCH
CENTRAL TIMER MODULE
PARK LAMP RELAY
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Connect a jumper wire between ground and the Park Lamp Switch Sense Circuit of
the Headlamp Switch harness connector.
Do the Park Lamps turn off?
All
Yes
→
No
→
Repair the Park Lamp Switch Sense Circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
2
Remove the Park Lamp Relay from the junction block.
Did the Park Lamps turn off?
All
Yes
→
No
→
Repair the Park Lamp Relay Output Circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the Headlamp Switch to the OFF position.
With the DRBIII
t, read the Headlamp Switch Voltage.
Is the voltage approximately 4.5 volts?
All
Yes
→
No
→
Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
4
Remove the Park Lamp Relay to begin this test.
Reinstall the Park Lamp Relay and listen for or feel the relay to click.
Does the relay click?
All
Yes
→
Replace the Central Timer Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
185
EXTERIOR LIGHTING
Symptom:
*PARK LAMPS WILL NOT TURN ON
POSSIBLE CAUSES
PARK LAMP RELAY OUTPUT CIRCUIT SHORT TO VOLTAGE
HEADLAMP SWITCH
PARK LAMP RELAY
JUNCTION BLOCK
PARK LAMP SWITCH SENSE CIRCUIT OPEN
FUSED B+ CIRCUIT OPEN
OPEN FUSE
CENTRAL TIMER MODULE
PARK LAMP RELAY CONTROL CIRCUIT SHORT TO GROUND
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, actuate the Park Lamp Relay.
Listen to or touch the Park Lamp Relay.
Did the relay Click during actuation?
All
Yes
→
No
→
2
Remove the Park Lamp Relay from the junction block.
Connect a jumper wire between the Fused B+ Circuit and the Park Lamp Relay
Output Circuit in the relay connector.
Did the Park Lamps come on?
All
Yes
→
No
→
Repair the Park Lamp Relay Output Circuit to the Park Lamps
for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the Headlamp Switch to the Park position.
With the DRBIII
t,read the Headlamp Switch Voltage.
Is the voltage approximately 0.5 volts?
All
Yes
→
No
→
Replace the Headlamp Switch.
Perform BODY VERIFICATION TEST - VER 1.
4
Remove the Park Lamp Relay.
Measure the voltage of the Fused B+ Circuit in the Park Lamp Relay connector.
Is the voltage above 10.0 volts?
All
Yes
→
Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Junction Block.
Perform BODY VERIFICATION TEST - VER 1.
186
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
5
Remove the Park Lamp Relay.
Measure the voltage of the Fused B+ Circuit in the Park Lamp Relay control side.
Is the voltage above 10.0 volts?
All
Yes
→
No
→
6
Turn the ignition off.
Disconnect the Headlamp Switch harness connector.
Connect a jumper wire between ground and the Park Lamp Switch Sense Circuit of
the Headlamp Switch harness connector.
Do the Park Lamps turn on?
All
Yes
→
Repair the Park Lamp Switch Sense Circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→
7
Check Junction Block Fuse #4
Is Fuse #4 open?
All
Yes
→
No
→
Repair the open Fused B+ Circuit from the junction block.
Perform BODY VERIFICATION TEST - VER 1.
8
Remove the Park Lamp Relay from the junction block.
Measure the resistance of the Park Lamp Relay Output Circuit to ground.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Replace the Fuse and recheck the system.
Perform BODY VERIFICATION TEST - VER 1.
9
Remove the Park Lamp Relay from the junction block.
Disconnect the Central Timer Module harness connector.
Measure the resistance of the Park Lamp Relay Control Circuit to ground.
Is the resistance below 5.0 ohms?
All
Yes
→
Repair the Park Lamp Relay Control Circuit for a short to ground
and replace the fuse.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the Central Timer Module.
Perform BODY VERIFICATION TEST - VER 1.
187
EXTERIOR LIGHTING
*PARK LAMPS WILL NOT TURN ON —
Continued
Symptom List:
A/C SWITCH FAULT (ACTIVE)
CHECKSUM FAILURE (ACTIVE)
REAR DEFOG SWITCH FAULT (ACTIVE)
UNKNOWN FAULT DETECTED (ACTIVE)
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be A/C SWITCH FAULT (ACTIVE).
When Monitored and Set Condition:
A/C SWITCH FAULT (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the A/C on/off switch stays closed for 10 minutes.
CHECKSUM FAILURE (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the calibrated check sum does not match the stored
value.
REAR DEFOG SWITCH FAULT (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the EBL/Heated Mirror switch stays closed for 10
minutes.
UNKNOWN FAULT DETECTED (ACTIVE)
When Monitored:
With the ignition on.
Set Condition:
This DTC will set if the A/C - Heater Cotrol Module detects an internal
fault.
POSSIBLE CAUSES
A/C - HEATER CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
View repair
All
Repair
Replace the A/C - Heater Control Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
188
HEATING & A/C
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