Dodge Caliber. Manual — part 250

*DIAGNOSTIC CAN C (+) CIRCUIT OPEN

For a complete wiring diagram Refer to Section 8W.

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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS

8E - 111

•

When Monitored:
When the scan tool queries the TIPM.

•

Set Condition:
The scan tool has detected an open condition on the (D72) Diagnostic CAN C (+) circuit.

Possible Causes

(D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN

TOTALLY INTEGRATED POWER MODULE

Diagnostic Test

1.

CHECK THE STATUS OF THE ERROR MESSAGE

NOTE: Ensure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be dis-
played.

NOTE: Ensure the scan tool is updated to the latest software.
With the scan tool, record the error message.

Disconnect the scan tool from the DLC.

Cycle the ignition from on to off 3 times.

Turn the ignition on.

Does the scan tool display this same error message?

Yes

>> Go To 2

No

>> The conditions that caused this error message to set are not present at this time. Using the wiring dia-

gram/schematic as a guide, inspect the wiring and connectors.

2.

(D72) DIAGNOSTIC CAN C (+) CIRCUIT OPEN

Turn the ignition off.

Disconnect the Totally Integrated Power Module (TIPM) C3 harness
connector.

Disconnect the scan tool from the DLC.

Measure the resistance of the (D72) Diagnostic CAN C (+) circuit
between the TIPM C3 harness connector and the DLC.

Is the resistance below 5.0 ohms?

Yes

>> Inspect the wiring and connectors for damage or shorted

circuits. If ok, replace the Totally Integrated Power Module
in accordance with the service information.

Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).

No

>> Repair the (D72) Diagnostic CAN C (+) circuit for an open.

Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).

8E - 112

ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS

PM

*DIAGNOSTIC CAN C (-) CIRCUIT OPEN

For a complete wiring diagram Refer to Section 8W.

PM

ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS

8E - 113

•

When Monitored:
When the scan tool queries the TIPM.

•

Set Condition:
The scan tool has detected an open condition on the (D71) Diagnostic CAN C (-) circuit.

Possible Causes

(D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN

TOTALLY INTEGRATED POWER MODULE

Diagnostic Test

1.

CHECK THE STATUS OF THE ERROR MESSAGE

NOTE: Ensure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be dis-
played.

NOTE: Ensure the scan tool is updated to the latest software.
With the scan tool, record the error message.

Disconnect the scan tool from the DLC.

Cycle the ignition from on to off 3 times.

Turn the ignition on.

Does the scan tool display this same error message?

Yes

>> Go To 2

No

>> The conditions that caused this error message to set are not present at this time. Using the wiring dia-

gram/schematic as a guide, inspect the wiring and connectors.

2.

(D71) DIAGNOSTIC CAN C (-) CIRCUIT OPEN

Turn the ignition off.

Disconnect the TIPM C3 harness connector.

Disconnect the scan tool from the DLC.

Measure the resistance of the (D71) Diagnostic CAN C (-) circuit
between the TIPM C3 harness connector and the DLC.

Is the resistance below 5.0 ohms?

Yes

>> Inspect the wiring and connectors for damage or shorted

circuits. If ok, replace the Totally Integrated Power Module
in accordance with the service information.

Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).

No

>> Repair the (D71) Diagnostic CAN C (-) circuit for an open.

Perform the BODY VERIFICATION TEST – VER 1. (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).

8E - 114

ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS

PM