Dodge Caliber. Manual — part 1028
Possible Causes
CHECK THE ECM POWER AND GROUNDS
ENGINE CONTROL MODULE
Diagnostic Test
1.
VERIFY CURRENT DTC
Turn the ignition on.
With the scan tool, erase ECM DTCs.
Perform several engine run cycles, turning the ignition off for at least 20 seconds between each engine run cycle.
With the scan tool, read the ECM DTCs.
Did this DTC set again?
Yes
>> Go To 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2.
CHECK POWER AND GROUNDS
Refer to symptom Checking the ECM Power and Grounds.
Are the ECM Power and Ground circuits o.k.?
Yes
>> Replace the ECM in accordance with the Service Information.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Repair as necessary.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1399
P2535-IGNITION SWITCH RUN/START POSITION CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W
9 - 1400
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
Possible Causes
CHECK THE ECM POWER AND GROUNDS
ENGINE CONTROL MODULE
Diagnostic Test
1.
VERIFY CURRENT DTC
Turn the ignition on.
With the scan tool, erase ECM DTCs.
Perform several engine run cycles, turning the ignition off for at least 20 seconds between each engine run cycle.
With the scan tool, read the ECM DTCs.
Did this DTC set again?
Yes
>> Go To 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2.
CHECK POWER AND GROUNDS
Refer to symptom Checking the ECM Power and Grounds.
Are the ECM Power and Ground circuits o.k.?
Yes
>> Replace the ECM in accordance with the Service Information.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
No
>> Repair as necessary.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).
PM
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1401
B10B3 - CABIN HEATER 1 CONTROL CIRCUIT
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
With the ignition on.
•
Set Condition:
A Cabin Heater (PTC) #1 error message has been received over the CAN bus from the TIPM.
Possible Causes
INTERMITTENT DTC
DTC SET IN TOTALLY INTEGRATED POWER MODULE (TIPM)
ENGINE CONTROL MODULE (ECM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.
DTC IS ACTIVE
NOTE: This DTC will set if the Engine Control Module (ECM) receives a message from the TIPM indicating
that a PTC Heater Relay DTC is present.
Ignition on, engine not running.
With the scan tool, Clear DTCs in the Engine Control Module (ECM).
With the scan tool, actuate the PTC Heater Relay 1.
With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
>> Go To 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2.
ENGINE CONTROL MODULE (ECM)
With the scan tool, select View DTCs in the Totally Integrated Power Module.
Is there a stored or active PTC Heater Relay DTC present in the TIPM?
Yes
>> Refer to 24 - HVAC — ELECTRICAL DIAGNOSTICS for diagnostic procedures and for further possible
causes.
No
>> Replace the Engine Control Module (ECM) in accordance with the Service Information.
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
9 - 1402
ENGINE ELECTRICAL DIAGNOSTICS - DIESEL
PM
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