[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - SUNROOF - INSPECTION PROCEDURE F-1: The sunroof does not work at all. | PRINT PAGE / INDEX / PRIOR / NEXT

| SUNROOF

INSPECTION PROCEDURE F-1: The sunroof does not work at all.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM If the sunroof does not work at all, these power supply circuit(s), these earth circuit(s), sunroof switch or the sunroof motor assembly (sunroof-ECU) may be defective.
| POSSIBLE CAUSES Malfunction of the sunroof switch Malfunction of the sunroof motor assembly (sunroof-ECU) Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. ECU check by using the SWS monitor Check that the power supply and earth lines to the sunroof motor assembly (sunroof-ECU) and the ETACS-ECU and the SWS communication lines are normal. Ignition switch: ON Operate the sunroof switch. ECUS TO BE CHECKED ETACS ECU SUNROOF ECU OK: "OK" are displayed for all the items. Q: Is the check result normal? "OK" are displayed for all the items: Go to Step 2. "NG" is displayed on the "ETACS ECU" menu.: Refer to Inspection Procedure A-3 "Communication with ETACS-ECU is not possible ." "NG" is displayed on the "SUNROOF ECU" menu.: Refer to Inspection Procedure A-6 "Communication with sunroof motor assembly (sunroof-ECU) is not possible ."
| Step 2. Function diagnosis by using the SWS monitor Check the SWS communication signal, which are related to the sunroof. <Selected item> SUNROOF OPE Ignition switch: ON
Item No. | Item name | Normal condition
--- | --- | ---
Item 30 | IG SW(IG1) | ON
Item 72 | S/R ECU ACK | INPUT CHECK (only momentarily when switch is operated)
OK: Normal conditions displayed for all the items. Q: Is the check result normal? Normal conditions are displayed for all the items.: Go to Step 3. Normal condition is not displayed for item No.30: Refer to Inspection Procedure P-2 "The ignition switch (IG1) signal is not received ." Normal condition is not displayed for item No.72: Replace the sunroof motor assembly.
| Step 3. Connector check: D-06 sunroof switch connector Q: Is the check result normal? YES: Go to Step 4. NO: Repair the connector.
| Step 4. Check the sunroof switch. Refer to GROUP 42 - Sunroof . Q: Is the check result normal? YES: Go to Step 5. NO: Replace the sunroof switch.
| Step 5. Measure the resistance at the D-06 sunroof switch connector. Disconnect the connector, and measure at the wiring harness side. Continuity between D-06 sunroof switch connector terminal No.4 and body earth OK: 2Ω or less Q: Is the check result normal? YES: Go to Step 7. NO: Go to Step 6.
| Step 6. Check the wiring harness between D-06 sunroof switch connector terminal No.4 and body earth. NOTE: Prior to the wiring harness inspection, check intermediate connector C-218 <R.H. drive vehicles> , and repair if necessary. Check the earth wires for open circuit. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Repair the wiring harness.
| Step 7. Connector check: D-09 sunroof motor assembly connector Q: Is the check result normal? YES: Go to Step 8. NO: Repair the connector.
| Step 8. Measure the voltage at the D-09 sunroof motor assembly connector. Disconnect the sunroof motor assembly connector, and measure at the harness side. Check the voltage between the D-09 sunroof motor assembly connector terminal No.1 and body earth. OK: Battery positive voltage Q: Is the check result normal? YES: Go to Step 10. NO: Go to Step 9.
| Step 9. Check the wiring harness between D-09 sunroof motor assembly connector terminal No.1 and the fusible link (5). NOTE: Prior to the wiring harness inspection, check intermediate connectors A-14 <R.H. drive vehicles>, C-116 <L.H. drive vehicles>, C-126 <R.H. drive vehicles> and C-218, and repair if necessary. Check the power supply line to the battery for open circuit. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Repair the wiring harness.
| Step 10. Measure the voltage at the D-09 sunroof motor assembly connector. Disconnect the sunroof motor assembly connector, and measure at the harness side. Ignition switch: ON Check the voltage between the D-09 sunroof motor assembly connector terminal No.2 and body earth. OK: Battery positive voltage Q: Is the check result normal? YES: Go to Step 12. NO: Go to Step 11.
| Step 11. Check the wiring harness between D-09 sunroof motor assembly connector terminal No.2 and the ignition switch (IG2). NOTE: Prior to the wiring harness inspection, check junction block connectors C-203 and C-210, and repair if necessary. Check the power supply line to the ignition switch (IG2) for open circuit. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Repair the wiring harness.
| Step 12. Measure the resistance at the D-09 sunroof motor assembly connector. Disconnect the sunroof motor assembly connector, and measure at the harness side. Check the resistance between D-09 sunroof motor assembly connector terminal No.5 and body earth. OK: 2Ω or less Q: Is the check result normal? YES: Go to Step 14. NO: Go to Step 13.
| Step 13. Check the wiring harness between D-09 sunroof motor assembly connector terminal No.5 and body earth. NOTE: Prior to the wiring harness inspection, check intermediate connector C-218 <R.H. drive vehicles>, and repair if necessary. Check body earth line for open circuit. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Repair the wiring harness.
| Step 14. Retest the system. The sunroof assembly should now work normally. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Replace the sunroof motor assembly.

[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - SUNROOF - INSPECTION PROCEDURE F-1: The sunroof does not work at all. | PRINT PAGE / INDEX / PRIOR / NEXT

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