INSPECTION PROCEDURE O-18: Sunroof switch: The open or close switch signal is not sent to the ETACS-ECU.: Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

MB991223: Test Harness Set
MB991502: Scan Tool (MUT-II)
MB991529: Diagnostic Trouble Code Check Harness

STEP 1. Verify the sunroof operation.
Q: Does the sunroof work normally?

YES : Go to Step 2.

NO: Solve the problem first. Refer to INSPECTION PROCEDURE F-1 .
STEP 2. Check the sunroof motor assembly connector D-08 and ETACS-ECU connector C-318 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are sunroof motor assembly connector D-08 and ETACS-ECU connector C-318 in good condition?

YES : Go to Step 3.

NO: Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . The input signal from the sunroof switch should be able to be checked and the sunroof should work normally.

Fig 1: Identifying Connector D-08 - Harness Side
Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 2: Identifying Connector C-318 - Harness Side
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 3. Check the wiring harness between sunroof motor assembly connector D-08 (terminal 10) and ETACS-ECU connector C-318 (terminal 59).

Fig 3: Identifying Connector D-08 - Harness Side
Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 4: Identifying Connector C-318 - Harness Side
Courtesy of DAIMLERCHRYSLER CORPORATION

NOTE: Also check intermediate connector C-28 and joint connector C-141 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-28 or joint connector C-141 are damaged, repair or replace the damaged component(s) Refer to , HARNESS CONNECTOR INSPECTION .

Q: Are the wiring harness between sunroof motor assembly connector D-08 (terminal 10) and ETACS-ECU connector C-318 (terminal 59) in good condition?

YES : Go to Step 4.

NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The input signal from the sunroof switch should be able to be checked and the sunroof should work normally.

Fig 5: Identifying Connector C-28, C-141
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 4. Replacement of ECU
1. Replace the sunroof motor assembly.
2. The input signal from the sunroof switch should be able to be checked and the sunroof should work normally.
Q: Is the input signal from the sunroof switch input normally?

YES : No action is necessary and testing is complete.

NO: Replace the ETACS-ECU. The input signal from the sunroof switch should be able to be checked and the sunroof should work normally.