Dodge Caliber. Manual — part 784
5.
(N201) LOW/HIGH RAD FAN CONTROL CIRCUIT OPEN
Measure the resistance of the (N201) Low/High Fan Control circuit from
the Low/High Rad Relay harness connector to the TIPM C11 harness
connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the open in the (N201) Low/High Fan Control circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
6.
(N201) LOW/HIGH RAD FAN CONTROL CIRCUIT SHORTED TO
GROUND
Measure the resistance between ground and the (N201) Low/High Fan
Control circuit in the TIPM C11 harness connector.
Is the resistance below 100 ohms?
Yes
>> Repair the short to ground in the (N201) Low/High Fan
Control circuit.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No
>> Replace the Totally Integrated Power Module in accordance
with the Service Information.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 423
P0481-COOLING FAN 2 CONTROL CIRCUIT
For a complete wiring diagram Refer to Section 8W.
9 - 424
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
•
When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
•
Set Condition:
An open or shorted circuit is detected in the High Speed Rad Fan Control circuit. One Trip Fault. Three good
trips to turn off the MIL.
Possible Causes
(A16) FUSED (B+) CIRCUITS
(N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE
(N112) RAD FAN RELAY CONTROL CIRCUIT OPEN
(N112) RAD FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND
MED/HIGH RAD FAN RELAY
SERIES/PARALLEL RAD FAN RELAY
TOTALLY INTEGRATED POWER MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
RADIATOR COOLING FAN MODULE OPERATION
Ignition on, engine not running.
With a scan tool, actuate both the Radiator Cooling Fan Relays #1 and #2.
Are both cooling fan operating at medium speed?
Yes
>> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 2
2.
(A16) FUSED B+ CIRCUIT
Ignition on.
Disconnect the Med/High Rad Fan Relay from the Fuse/Relay Block.
Disconnect the Series/Parallel Rad Fan Relay from the Fuse/Relay
Block.
Using a 12-volt test light connected to ground, probe the (A16) Fused
B+ circuit at both the Med/High Rad Fan Relay and the Series/Parallel
Rad Fan Relay connectors.
Does the test light illuminate brightly at each terminal?
Yes
>> Go To 3
No
>> Repair the (A16) Fused B+ circuit. Inspect the related fuse
and repair as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 425
3.
MED/HIGH RAD FAN RELAY
Install the Series/Parallel Rad Fan Relay.
Turn the ignition on, engine not running.
With a scan tool, select Radiator Cooling Fan Relay #2 Control State,
Toggle, to actuate the Cooling Fan (Med/High Rad Fan Relay).
Using a 12-volt test light connected to battery voltage, probe the (N112)
Rad Fan Relay Control circuit at the Med/High Rad Fan Relay.
Does the test light illuminate brightly and flash on and off?
Yes
>> Replace the Med/High Rad Fan Relay.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 4
4.
SERIES/PARALLEL RAD FAN RELAY)
Remove the Series/Parallel Rad Fan Relay.
Install the Med/High Rad Fan Relay.
Turn the ignition on, engine not running.
With a scan tool, select Radiator Cooling Fan Relay #2 Control State,
Toggle, to actuate the Cooling Fan (Series/Parallel Rad Fan Relay).
Using a 12-volt test light connected to battery voltage, probe the (N112)
Rad Fan Relay Control circuit at the Series/Parallel Rad Fan Relay.
Does the test light illuminate brightly and flash on and off?
Yes
>> Replace the Series/Parallel Rad Fan Relay.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to
9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 5
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ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
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