Dodge Ram Truck 1500-2500-3500. Manual — part 592
FCM-WASHER PUMP OUTPUT CIRCUIT LOW (CONTINUED)
2.
WASHER PUMP MOTOR - FRONT
Turn the ignition off.
Disconnect the Washer Pump Motor - Front harness connector.
Turn the ignition on.
With the DRBIII
T
, read DTCs.
Does the DRBIII
T
display: Washer Pump Output Circuit Open?
Yes
>> Replace the Washer Pump Motor - Front in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the Integrated Power Module C3 harness connector.
Disconnect the Washer Pump Motor harness connector.
Measure the resistance between ground and the Washer Pump Motor
Control circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the Washer Pump Motor Control circuit for a short
to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 4
4.
POWER DISTRIBUTION CENTER
Turn the ignition off.
Disconnect the FCM from the IPM.
Disconnect the IPM C3 harness connector.
Measure the resistance between ground and the IPM Washer Pump Motor Control circuit terminal pin.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Power Distribution Center (PDC) in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Front Control Module (FCM) in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
8R - 8
WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS
DR/DH
FCM-WASHER PUMP OUTPUT CIRCUIT OPEN
DR/DH
WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS
8R - 9
FCM-WASHER PUMP OUTPUT CIRCUIT OPEN (CONTINUED)
For the Wiper Washer system circuit diagram (Refer to 8 - ELECTRICAL/WIPERS/WASHERS - SCHEMATICS AND
DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the igntion on.
•
Set Condition:
The FCM detects more than 5.0 volts on the Washer Pump Motor Control circuit.
Possible Causes
WASHER PUMP MOTOR-FRONT
WASHER PUMP MOTOR GROUND CIRCUIT OPEN
WASHER PUMP MOTOR CONTROL CIRCUIT OPEN
POWER DISTRIBUTION CENTER
FRONT CONTROL MODULE
1.
INTERMITTENT CONDITION
Turn the ignition on.
With the DRBIII
T
, clear all FCM DTC’s.
Actuate the Wiper Washers.
With the DRBIII
T
, read the DTC information.
Does the DRBIII
T
read: Washer Pump Output
Circuit Open?
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.
8R - 10
WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS
DR/DH
FCM-WASHER PUMP OUTPUT CIRCUIT OPEN (CONTINUED)
2.
WASHER PUMP MOTOR - FRONT
Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Connect a jumper wire between cavity 1 and cavity 2.
Turn the ignition on.
With the DRBIII
T
, read DTCs.
Does the DRBIII
T
display: Washer Pump Output Circuit Low?
Yes
>> Replace the Washer Pump Motor - Front in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
WASHER PUMP MOTOR GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Measure the resistance between ground and the Washer Pump Motor
Ground circuit.
Is the resistance above 5.0 ohms?
Yes
>> Repair the Washer Pump Motor Ground circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 4
4.
WASHER PUMP MOTOR CONTROL CIRCUIT OPEN
Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Disconnect the IPM C3 harness connector.
Measure the resistance of the Washer Pump Motor Control circuit.
Is the resistance above 5.0 ohms?
Yes
>> Repair the Washer Pump Motor Control circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 5
DR/DH
WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS
8R - 11
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