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COMMENTS ON TROUBLE SYMPTOM |
When the system cannot be activated
or deactivated even if corner sensor/back sonar sensor
switch is pressed, the wiring harness, connectors, corner
sensor/back sonar sensor switch, or corner
sensor/back sonar sensor-ECU may be
defective. |
POSSIBLE CAUSES |
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DIAGNOSTIC PROCEDURE |
Step 1. Connector check: Corner sensor/back sonar sensor switch connector C-41. |
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Q.
Is the check result normal?![]() ![]() |
Step 2. Inspection of corner sensor/back sonar sensor switch |
Inspect the corner
sensor/back sonar sensor switch for normal operation.
Refer to ![]() |
Q.
Is the check result normal?
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Step 3. Resistance measurement at corner sensor/back sonar sensor switch connector C-41 in order to the earth circuit to the corner sensor/back sonar sensor switch. |
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(1)Disconnect corner sensor/
back sonar sensor switch connector C-41, and measure at the
wiring harness side. |
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(2)Measure the resistance between
terminal 4 and earth. OK: Continuity exists (2 Ω or less) Q.
Is the check result normal?![]() ![]() |
Step 4. Check the wiring harness between corner sensor/back sonar sensor switch connector C-41 (terminal 4) and earth. |
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Q.
Is the check result normal?![]() ![]() |
Step 5. Connector check: Corner sensor/back sonar sensor-ECU C-137. |
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Q.
Is the check result normal?![]() ![]() |
Step 6. Check the wiring harness between corner sensor/back sonar switch connector C-41 (terminal 3) and corner sensor/back sonar sensor-ECU connector C-137 (terminal 13). |
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Q.
Is the check result normal?![]() ![]() |