[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-3: The inhibitor switch (reverse position) signal is not received. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE P-3: The inhibitor switch (reverse position) signal is not received.
| CAUTION Whenever the ECU is replaced, ensure that the input signal circuit is normal.
| COMMENTS ON TROUBLE SYMPTOM Input signal from the inhibitor switch (reverse position) is used to operate the functions below. If the signal is abnormal, these functions will not work normally. R (reverser) position reminder function Rear wiper
| POSSIBLE CAUSES Malfunction of the inhibitor switch Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Connector check: B-22 inhibitor switch connector and C-220 ETACS-ECU connector Q: Is the check result normal? YES: Go to Step 2. NO: Repair the connector.
| Step 2. Check the inhibitor switch Refer to GROUP 23 - On-vehicle Service . Q: Is the check result normal? YES: Go to Step 3. NO: Replace the inhibitor switch.
| Step 3. Measure the voltage at the C-220 ETACS-ECU connector. Disconnect the connector, and measure at the wiring harness side. Ignition switch: ON Shift position: R position Voltage between C-220 ETACS-ECU connector terminal No.39 and body earth OK: Battery positive voltage Q: Is the check result normal? YES: Replace the ETACS-ECU. NO: Go to Step 4.
| Step 4. Measure the voltage at the B-22 inhibitor switch connector. Disconnect the connector, and measure at the wiring harness side. Ignition switch: ON Voltage between B-22 inhibitor switch connector terminal No.8 and body earth OK: Battery positive voltage Q: Is the check result normal? YES: Go to Step 5. NO: Go to Step 6.
| Step 5. Check the wiring harness between B-22 inhibitor switch connector terminal No.7 and C-220 ETACS-ECU connector terminal No.39. NOTE: Prior to the wiring harness inspection, check joint connector C-02 and intermediate connector C-105, and repair if necessary. Check the input line for open circuit. Q: Is the check result normal? YES: Go to Step 7. NO: Repair the wiring harness.
| Step 6. Check the wiring harness between B-22 inhibitor switch connector terminal No.8 and the ignition switch (IG1). NOTE: Prior to the wiring harness inspection, check intermediate connector C-106, joint connector C-16 and junction block connectors C-202 and C-203, and repair if necessary. Check the power supply line to the ignition switch (IG1) 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. Retest the system. Check that the inhibitor switch (reverse position) signal is received 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.

[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-3: The inhibitor switch (reverse position) signal is not received. | PRINT PAGE / INDEX / PRIOR / NEXT

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