[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-9: When the sunroof switch is operated, the switch signals are not received. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE P-9: When the sunroof switch is operated, the switch signals are not received.
| CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.
| COMMENTS ON TROUBLE SYMPTOM If the input signal from the sunroof switch is abnormal, the sunroof input check response signal will not be sent to the SWS communication line.
| POSSIBLE CAUSES Malfunction of the sunroof motor assembly Malfunction of the sunroof switch 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-ECU and the SWS communication lines are normal. Ignition switch: ON ECUS TO BE CHECKED SUNROOF ECU OK: "OK" is displayed on the "SUNROOF ECU" menu. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to Inspection Procedure A-6 "Communication with sunroof motor assembly (sunroof-ECU) is not possible ."
| Step 2. Connector check: D-06 sunroof switch connector Q: Is the check result normal? YES: Go to Step 3. NO: Repair the defective connector.
| Step 3. Check the sunroof switch. Q: Is the sunroof switch in good condition? (Refer to GROUP 42 - Sunroof ). YES: Go to Step 4. NO: Replace the sunroof switch.
| Step 4. 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 6. NO: Go to Step 5.
| Step 5. Check the wiring harness between D-06 sunroof motor 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 6. Connector check: D-09 sunroof motor assembly connector Q: Is the check result normal? YES: Go to Step 7. NO: Repair the defective connector.
| Step 7. Check the wiring harness from D-09 sunroof motor assembly connector (terminals 6, 7 and 8) to D-06 sunroof switch connector (terminals 6, 3 and 5). Check the input line for open circuit. Q: Is the check result normal? YES: Go to Step 8. NO: Repair the wiring harness.
| Step 8. SWS monitor data list <Selected item> Fr-ECU, P/W, S/R Operate the sunroof switch.
Item No. | Item name | Normal condition
--- | --- | ---
Item 72 | Sunroof ECU response | INPUT CHECK
OK: Normal conditions are displayed for all the positions of the switch. 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.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-9: When the sunroof switch is operated, the switch signals are not received. | PRINT PAGE / INDEX / PRIOR / NEXT

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