Dodge Dakota (ND). Manual — part 300
B1670-RIGHT TRAILER TOW LAMP CONTROL CIRCUIT HIGH (CONTINUED)
3.
FRONT CONTROL MODULE
Turn the ignition off.
Remove the Right Trailer Tow Relay from the MPD.
Remove the FCM from the Module Power Distribution.
Measure the voltage of the (L656) Right Trailer Tow Relay Output cir-
cuit and ground.
Is the voltage above 1.0 volts?
Yes
>> Replace the Module Power Distribution center in accor-
dance with the service information.
Perform the BODY VERIFICATION TEST-VER1.
No
>> Replace the Module Front Control in accordance with the
service information.
Perform the BODY VERIFICATION TEST-VER1.
8L - 62
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
ND
B160D-TURN/HAZARD SWITCH INPUT CIRCUIT LOW
ND
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 63
B160D-TURN/HAZARD SWITCH INPUT CIRCUIT LOW (CONTINUED)
For the Exterior Lighting system circuit diagram (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERIOR -
SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
Set Condition:
Possible Causes
MULTIFUNCTION SWITCH
(G902) MUX RETURN CIRCUIT
INSTRUMENT CLUSTER
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all CCN DTC’s.
Actuate the Hazard Lamps.
With the Scan Tool, read the DTC information.
Does the Scan Tool read: B160D-TURN/HAZARD SWITCH INPUT
CIRCUIT LOW?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not
present. Inspect the related wiring for a possible intermit-
tent condition. Look for any chafed, pierced, pinched, or
partially broken wires.
Perform the BODY VERIFICATION TEST — VER 1.
2.
MULTIFUNCTION SWITCH
Disconnect the Multifunction Switch connector.
Turn the ignition on.
Measure the voltage of the (G902) MUX Return circuit.
Does the voltage read 5.0 volts?
Yes
>> Go To 3
Perform the BODY VERIFICATION TEST — VER 1.
No
>> Replace the Multifunction Switch in accordance with the service information.
Perform the BODY VERIFICATION TEST — VER 1.
8L - 64
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
ND
B160D-TURN/HAZARD SWITCH INPUT CIRCUIT LOW (CONTINUED)
3.
(G902) MUX RETURN CIRCUIT
Turn the ignition off.
Disconnect the Multifunction Switch connector.
Disconnect the Instrument Cluster C2 connector.
Measure the resistance of the (G902) MUX Return circuit to ground.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (G902) MUX return circuit.
Perform the BODY VERIFICATION TEST — VER 1.
No
>> Replace the Instrument Cluster in accordance with the ser-
vice information.
Perform the BODY VERIFICATION TEST — VER 1.
ND
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 65
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