Dodge Caliber. Manual — part 911
2.
(F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUITS (PCM)
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the (F202) Fused
Ignition Switch Output circuit in the PCM harness connector.
Turn the ignition to run.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go to 3
No
>> Repair the (F202) Ignition Switch Output circuits. Inspect
and replace fuses as necessary.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
3.
(Z925) GROUND CIRCUITS (PCM)
Turn the ignition off.
Using a 12-volt test light connected to battery voltage, probe both the
(Z925) PCM ground circuits
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly at both terminals?
Yes
>> Go to 4
No
>> Repair the Ground circuit(s).
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 931
4.
(A14) FUSED B+ CIRCUIT (MAIN RELAY)
Turn the ignition off.
Remove the Main Relay.
Using a 12-volt test light connected to ground, probe the (A14) Fused
B+ circuit at the Main Relay terminal.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go to 5
No
>> Repair the (A14) Fused B+ circuit.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
5.
(A935) FUSED B+ CIRCUIT (MAIN RELAY)
Using a 12-volt test light connected to ground, probe the (A935) Fused
B+ circuit at the Main Relay terminal.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go to 6
No
>> Repair the (A935) Fused B+ circuit.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
9 - 932
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
6.
(F342) MAIN RELAY OUTPUT CIRCUITS
Turn the ignition on.
Using a jumper wire, jumper across the Main Relay from (K542) Main
Relay Output circuit and the (A14) Fused B+ circuit.
With a 12-volt test light connected to ground, probe the (F342) Main
Relay Output circuits in the PCM harness connector.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly at both terminals?
Yes
>> Go to 8
No
>> Go to 7
7.
(K542) MAIN RELAY OUTPUT CIRCUIT
Jumper wire still installed.
Disconnect the C8 TIPM harness connector.
Using a 12-volt test light connected to ground, probe the (K542) Main
Relay Output circuit in the TIPM harness connector.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Repair the (K542) Main Relay Output circuit between the
TIPM and the Main Relay. Inspect the related fuses.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
No
>> Repair the (F342) Main Relay Output circuit(s).
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
8.
MAIN RELAY OUTPUT
Turn the ignition off.
Remove one end of the jumper wire.
Connect the PCM harness connector.
Turn the ignition on.
Return the jumper wire across the Main Relay.
Using a scan tool, attempt to communication with the PCM.
Were you able to communication with the PCM?
Yes
>> Go to 9
No
>> Go to 11
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 933
9.
MAIN RELAY
NOTE: To continue the following test, leave the jumper wire in
place with the ignition on.
Using the scan tool, actuate the Main Relay.
Using a 12-volt test light connected to battery voltage, probe the (K51)
Main Relay Control circuit in the Main Relay connector.
Does the test light illuminate and flash on and off?
Yes
>> Replace the Main Relay.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
No
>> Go to 10
10.
(K51) MAIN RELAY CONTROL CIRCUIT
Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the C1 PCM harness connector.
Measure the resistance of the (K51) Main Relay Control circuit between
the PCM harness connector and the Main relay connector.
Is the resistance below 5.0 ohms?
Yes
>> Repair the open in the (K51) Main Relay Control circuit.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
No
>> Replace and program the Powertrain Control Module per
Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING)
9 - 934
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
PM
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