DTC B2939 [POWER LIFTGATE (PLG) SYSTEM]

id0902e9395300

DTC B2939 | Clutch circuit malfunction
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DETECTION CONDITION | The current flowing to the PLG motor is normal (1 A or more), however, the output signal of rotation sensor A continues to not change while the PLG is operating.
POSSIBLE CAUSE | • Open circuit in wiring harness between PLG control module terminal 2I and PLG drive unit terminal M • Open circuit in wiring harness between PLG control module terminal 2G and PLG drive unit terminal N • Clutch malfunction • PLG control module malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT WIRING HARNESS BETWEEN PLG CONTROL MODULE AND PLG DRIVE UNIT • Disconnect the PLG control module connector. • Disconnect the PLG drive unit connector. • Inspect the wiring harness between PLG control module terminals 2I and 2G, and PLG drive unit terminals M and N for an open circuit. • Is the wiring harness normal? | Yes | Replace the PLG drive unit. (See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION.) Go to the next step.
No | Repair or replace the wiring harness. Go to the next step.
2 | VERIFY CORRECTION COMPLETED • Reconnect the disconnected connector. • Clear the DTC. • Operate the PLG system. • Is DTC B2939 stored? | Yes | Replace the PLG control module. (See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.)
No | DTC troubleshooting completed.