[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - TONE ALARM - INSPECTION PROCEDURE B-3: R (reverse) position warning function does not work. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE B-3: R (reverse) position warning function does not work.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM The ETACS-ECU operates this function in accordance with the input signals below. Ignition switch (IG1) Inhibitor switch ("R" position) If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective.
| POSSIBLE CAUSES Malfunction of the inhibitor switch Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Pulse check Check the input signals below, which are related to the R (reverse) position warning function.
System switch | Check conditions
--- | ---
Ignition switch (IG1) | When turned from ACC to ON
Inhibitor switch ("R" position) | When the selector lever is moved from the R position to the other position.
OK: The MUT-II/III sounds or the voltmeter needle fluctuates. Q: Are the check result normal? All the signals are received normally.: Go to Step 2. The ignition switch (IG1) signal is not received.: Refer to inspection procedure P-2 "The ignition switch (IG1) signal is not received" . The inhibitor switch (reverse position) signal is not received.: Refer to inspection procedure P-3 "The inhibitor switch (reverse position) signal is not received" .
| Step 2. Retest the system. Check that the R (reverse) position warning 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.

[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - TONE ALARM - INSPECTION PROCEDURE B-3: R (reverse) position warning function does not work. | PRINT PAGE / INDEX / PRIOR / NEXT

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