DTC U0030/U0031 [POWER RETRACTABLE HARDTOP]

id0902j2860600

DTC | U0030 | Power window communication error (during power retractable hardtop operation)
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U0031 | Power window communication error (during power retractable hardtop not operation)
DETECTION CONDITION | • U0030: Open notify signal cannot be received. • U0031: Open notify signal is received continuously for 30 s or more.
POSSIBLE CAUSE | • Power window main switch malfunction • Open or short circuit in wiring harness between power retractable hardtop control module and power window main switch • Power retractable hardtop control module malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT THE POWER WINDOW SYSTEM • Inspect the power window main switch. (See POWER WINDOW MAIN SWITCH INSPECTION.) • Is the power window main switch normal? | Yes | Go to the next step.
No | Replace the power window main switch, then go to next step.
2 | INSPECT THE WIRING HARNESS BETWEEN POWER RETRACTABLE HARDTOP CONTROL MODULE AND POWER WINDOW MAIN SWITCH • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the power retractable hardtop control module and power window main switch connector. • Inspect for continuity between power retractable hardtop control module connector terminal 1E and power window main switch terminal A, and between power retractable hardtop control module connector terminal 1C and power window main switch terminal H. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness.
3 | INSPECT THE POWER RETRACTABLE HARDTOP CONTROL MODULE • Connect the negative battery cable. • Clear the DTC from the power retractable hardtop control module memory using the M-MDS. • Turn the ignition switch to the ON position. • Operate the power retractable hardtop. • Is the DTC displayed? ― U0030 or U0031 | Yes | Replace the power retractable hardtop control module. (See POWER RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
No | DTC troubleshooting completed.