Dodge Ram. Manual — part 86
Symptom:
FCM-PARK LAMP RELAY OUTPUT CIRCUIT HIGH
POSSIBLE CAUSES
INTERMITTENT CONDITION
PARK LAMP RELAY
FRONT CONTROL MODULE
INTEGRATED POWER MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all FCM DTC’s.
Turn the Park Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t read: Park Lamp Relay Output Circuit High?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Remove and install a known good relay in place of the Park Lamp Relay.
Do the Park Lamps operate normally?
All
Yes
→ Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Remove the Park Lamp Relay from the IPM.
Remove the Front Control Module from the IPM.
Measure the voltage of the Park Lamp Relay Control circuit and ground.
Is the voltage above 1.0 volts?
All
Yes
→ Replace the Integrated Power Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
341
EXTERIOR LIGHTING
Symptom:
FCM-PARK LAMP RELAY OUTPUT CIRCUIT LOW
POSSIBLE CAUSES
INTERMITTENT CONDITION
PARK LAMP RELAY
FRONT CONTROL MODULE
POWER DISTRIBUTION CENTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all FCM DTC’s.
Turn the Park Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t read: Park Lamp Relay Output Circuit Low?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Install a know good relay in place of the Park Lamp Relay.
Turn the ignition on.
Actuate the Park Lamps.
Do the Park Lamps operate normally?
All
Yes
→ Go To 3
No
→ Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off
Remove the Park Lamp Relay.
Remove the FCM from the IPM.
Measure the resistance between ground and the Park Lamp Relay control circuit in
the IPM.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Power Distribution Center(PDC).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
342
EXTERIOR LIGHTING
Symptom:
FCM-PARK LAMP RELAY OUTPUT CIRCUIT OPEN
POSSIBLE CAUSES
INTERMITTENT CONDITION
MISSING RELAY
PARK LAMP RELAY
FRONT CONTROL MODULE
PARK LAMP RELAY OUTPUT CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all FCM DTC’s.
Turn the Park Lamps on.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t read: Park Lamp Relay Output Circuit Open?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Check the IPM to make certain the Park Lamp Relay is present.
Is the Park Lamp Relay present?
All
Yes
→ Go To 3
No
→ Replace the missing Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Install a known good relay in place of the park lamp relay.
Turn the Park Lamps On.
Do the Park Lamps operate normally?
All
Yes
→ Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off
Remove the Park Lamp Relay.
Measure the voltage of the Fused B+ circuit of the park lamp relay.
Is the voltage above 10 volts?
All
Yes
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Park Lamp Relay Output Circuit.
Perform BODY VERIFICATION TEST - VER 1.
343
EXTERIOR LIGHTING
Symptom:
FCM-REAR LEFT TURN OUTPUT CIRCUIT LOW
POSSIBLE CAUSES
INTERMITTENT CONDITION
REAR LEFT TURN LAMP DRIVER CIRCUIT SHORT TO GROUND
FRONT CONTROL MODULE
POWER DISTRIBUTION CENTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all FCM DTC’s.
Actuate the Left Turn signal lamp.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t read: Rear Left Turn Output Circuit Low?
All
Yes
→ Go To 2
No
→ The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the IPM C3 harness connector.
Measure the resistance between ground and the Rear Left Turn Lamp Driver circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 3
No
→ Repair the Rear Left Turn Lamp Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off
Disconnect the FCM connector.
Disconnect the IPM C3 harness connector.
Measure the resistance between ground and the Rear Left Turn Lamp Driver circuit
in the IPM.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Power Distribution Center(PDC).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
344
EXTERIOR LIGHTING
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст