Inspection Procedure 1: The Reversing Sensor System does not
Operate.
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COMMENTS ON TROUBLE SYMPTOM
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If the reversing sensor OFF indicator
illuminate when the ignition switch is turned to the "ON" position, the
power supply system is normal. The wiring harness, connectors, corner
sensor-ECU may be defective.
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- Damaged harness wires and connectors
- Malfunction of corner sensor-ECU
- Malfunction of ignition switch (IG2)
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STEP 1. Connector check: D-16 Corner sensor-ECU
connector.
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Q.
Is the check result normal?
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 Go to Step 2.
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 Repair
the defective connector.
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STEP 2. Voltage measurement at D-16 corner sensor-ECU connector in
order to power supply circuit to corner sensor-ECU (IG2 power
supply)
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(1)Disconnect corner sensor-ECU connector D-16, and measure
at the wiring harness side.
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(2)Turn the ignition switch to "ON" position.
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(3)Measure the voltage between terminal No. 11 and
earth.
OK: System voltage
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Q.
Is the check result normal?
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Go to Step 4.
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Go to Step 3.
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STEP 3. Check the wiring harness between D-16 corner sensor-ECU
connector terminal No. 11 and ignition switch (IG2).
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| note |
Before the wiring harness inspection, inspect
junction block connector D-403 and D-405,and joint connector D-34, and
repair if necessary.
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Q.
Is the check result normal?
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Retest
the system.
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Repair
the wiring harness.
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STEP 4. Resistance measurement at corner sensor-ECU connector D-16 in
order to the earth circuit to the corner sensor-ECU.
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(1)Disconnect corner sensor-ECU connector D-16, and measure
at the wiring harness side.
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(2)Measure the resistance between terminal No. 20 and
earth.
OK: Continuity exists (2 Ω or less)
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Q.
Is the check result normal?
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Go to Step 6.
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Go to Step 5.
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STEP 5. Check the wiring harness between D-16 corner sensor-ECU
connector terminal No. 20 and earth.
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Q.
Is the check result normal?
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Retest
the system.
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Repair
the wiring harness.
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STEP 6. Verification after corner sensor-ECU replacement
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After replacing the corner sensor-ECU, inspect
the reversing sensor system for normal operation.
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Q.
Is the check result normal?
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The
procedure is complete.
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Replace the ignition switch.
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