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If the sunroof does not work at all, these power supply circuit(s), these earth circuit(s),
sunroof switch or the sunroof motor assembly (sunroof-ECU) may be defective.
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- Malfunction of the sunroof switch
- Malfunction of the sunroof motor assembly (sunroof-ECU)
- Damaged harness wires and connectors
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Q.
Is the check result normal?
Go to Step 2.
Repair the connector.
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Check that the sunroof switch works normally. Refer to .
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Q.
Is the check result normal?
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Replace the sunroof switch.
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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Continuity between C-01 sunroof switch connector terminal No.4 and body earth OK: Continuity (Less than 2 Ω)
Q.
Is the check result normal?
Go to Step 5.
Go to Step 4.
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note |
Prior to the wiring harness inspection, check intermediate connector C-34, junction block
connector B-213 and B-230, and repair if necessary.
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- Check the earth wires for open circuit.
Q.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points -
How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
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Q.
Is the check result normal?
Go to Step 6.
Repair the connector.
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(1)Disconnect the sunroof motor assembly connector, and measure at the harness side. (2)Ignition switch: ON
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(3)Check the voltage between the C-03 sunroof motor assembly connector terminal No.3 and
body earth. OK: Battery positive voltage
Q.
Is the check result normal?
Go to Step 8.
Go to Step 7.
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note |
Prior to the wiring harness inspection, check intermediate connector C-34, junction block
connector B-208 and B-213, and repair if necessary.
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- Check the power supply line for open circuit.
Q.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points -
How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
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(1)Disconnect the sunroof motor assembly connector, and measure at the harness side.
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(2)Check the voltage between the C-03 sunroof motor assembly connector terminal No.6 and
body earth. OK: Battery positive voltage
Q.
Is the check result normal?
Go to Step 10.
Go to Step 9.
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note |
Prior to the wiring harness inspection, check intermediate connector C-34, junction block
connector B-208 and B-213, and repair if necessary.
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- Check the power supply line for open circuit.
Q.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points -
How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
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(1)Disconnect the sunroof motor assembly connector, and measure at the harness side.
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(2)Check the resistance between C-03 sunroof motor assembly connector terminal No.1 and body
earth. OK: Continuity (Less than 2 Ω)
Q.
Is the check result normal?
Go to Step 12.
Go to Step 11.
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note |
Prior to the wiring harness inspection, check intermediate connector C-34, junction block
connector B-213 and B-230, and repair if necessary.
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- Check earth line for open circuit.
Q.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points -
How to Cope with Intermittent Malfunction ).
Repair the wiring harness.
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The sunroof assembly should now work normally.
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Q.
Is the check result normal?
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The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use
Troubleshooting/inspection Service Points -
How to Cope with Intermittent Malfunction ).
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Replace the sunroof motor assembly.
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