What this code means

The PCM has detected an overcurrent condition in the Tumble Generator Valve 1 actuator circuit. The actuator is drawing more current than expected, which may indicate a short circuit or mechanical binding.

Symptoms

• Check Engine Light
• TGV 1 may operate erratically
• Possible blown fuse
• PCM protective shutdown of circuit

Common causes

• TGV actuator motor shorted internally
• Wiring short to ground or power
• TGV valve mechanically binding causing motor overload
• Water intrusion in actuator
• Connector damage

Diagnostic steps

1. Test TGV 1 actuator resistance (low reading indicates short)
2. Inspect wiring for shorts
3. Check for TGV mechanical binding
4. Look for water intrusion in actuator
5. Disconnect actuator and check circuit

Repair notes

Replace the TGV actuator if shorted; free any mechanical binding and repair wiring shorts.

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