[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-5: The impact detection door unlock function does not function. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE C-5: The impact detection door unlock function does not function.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM If the impact detection door unlock function does not work normally, the input signal circuit from the impact detection sensor, the SRS-ECU or the ETACS-ECU may be defective.
| POSSIBLE CAUSES Malfunction of the SRS-ECU Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. MUT-II/III diagnosis code Check that the SRS-ECU sets a diagnosis code. Q: Is the diagnosis code set? YES: Refer to GROUP 52B - Troubleshooting . NO: Go to Step 2.
| Step 2. ECU check by using the SWS monitor Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal. Ignition switch: OFF ECU TO BE CHECKED ETACS ECU OK: "OK" is displayed on the "ETACS ECU" menu. Q: Is the check result normal? YES: Go to Step 3. NO: Refer to Inspection Procedure A-3 "Communication with ETACS-ECU is not possible ."
| Step 3. Connector check: C-115 SRS-ECU connector Q: Is the check result normal? YES: Go to Step 4. NO: Repair the defective connector.
| Step 4. Measure the resistance at the C-115 SRS-ECU connector. Disconnect the connector, and measure at the wiring harness side. Resistance between C-115 SRS-ECU connector terminal No.15 and body earth OK: 2 Ω 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 C-115 SRS-ECU connector terminal No.15 and body earth. Check the earth line for open or short 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: C-220 ETACS-ECU connector Q: Is the check result normal? YES: Go to Step 7. NO: Repair the defective connector.
| Step 7. Check the wiring harness between C-115 SRS-ECU connector terminal No.14 and C-220 ETACS-ECU connector terminal No.29. Check the power supply line for open or short circuit. Q: Is the check result normal? YES: Go to Step 8. NO: Repair the wiring harness.
| Step 8. Retest the system. Check that the impact detection door unlock function works 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 ETACS-ECU.

[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - CENTRAL DOOR LOCKING SYSTEM - INSPECTION PROCEDURE C-5: The impact detection door unlock function does not function. | PRINT PAGE / INDEX / PRIOR / NEXT

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