Dodge Caliber. Manual — part 958
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3.
(N112) RADIATOR FAN CONTROL RELAY CONTROL CIRCUIT
Disconnect the TIPM C-11 harness connector.
Turn the ignition on, engine not running.
With a scan tool, select Radiator Cooling Fan Relay #1 Control State,
Toggle, to actuate the Radiator Fan Control Relay.
Using a 12–volt test light connected to battery voltage, probe the (N112)
Radiator Control Relay Control circuit in the TIPM C-11 harness con-
nector.
Does the test light illuminate and flash on and off?
Yes
>> Replace the Radiator Fan Control Relay.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE)
No
>> Go To 4
4.
(N201) LOW/HIGH RADIATOR FAN CONTROL RELAY CONTROL CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the (N201) Low/High Radiator Fan Control
Relay Control circuit between the Rad Fan Control Relay #1 connector
and the TIPM C11 harness connector.
Is the resistance below 10.0 ohms?
Yes
>> Go To 5
No
>> Replace the PDM in accordance with the Service informa-
tion.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE)
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1119
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5.
(N201) LOW/HIGH RADIATOR FAN CONTROL RELAY CONTROL CIRCUIT SHORTED TO GROUND
Measure the resistance between ground and the (N201) Low/High Radi-
ator Fan Control Relay #1 Control circuit at the TIPM C11 harness con-
nection.
Is the resistance below 1000 ohms?
Yes
>> Replace the TIPM in accordance with the Service informa-
tion.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE)
No
>> Replace Front Control Module in accordance with the Ser-
vice Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE)
9 - 1120
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
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P0481-COOLING FAN 2 CONTROL CIRCUIT
For a complete wiring diagram Refer to Section 8W.
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1121
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•
When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
•
Set Condition:
The ECM receives a CAN Bus message from the TIPM indicating an open or shorted circuit on the Radiator
Fan Medium/High Relay Control circuit.
Possible Causes
FUSED B+ CIRCUITS
(N112) RADIATOR FAN RELAY CONTROL CIRCUIT OPEN
(N112) RADIATOR FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND
RADIATOR FAN MEDIUM/HIGH 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 FAN MEDIUM/HIGH RELAY OPERATION
Ignition on, engine not running.
With a scan tool, select Radiator Cooling Fan Relay #2 Control State, to actuate the Radiator Fan Medium/High
Relay.
Is the Cooling Fan Relay operating?
Yes
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No
>> Go To 2
2.
FUSED B+ CIRCUITS
Turn the ignition off.
Remove the Radiator Medium/High Fan Relay.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the (A935) and
(A16) Fused B+ circuits in the Relay connection.
Does the test light illuminate brightly?
Yes
>> Go To 4
No
>> Go To 3
9 - 1122
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
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