What this code means

The PCM has detected a high-voltage condition on the Tumble Generator Valve 1 right-hand position sensor circuit, indicating a possible open circuit or short to reference voltage on the right bank.

Symptoms

• Check Engine Light
• Minor fuel economy decrease
• Slightly higher emissions output

Common causes

• Open circuit in TGV 1 RH sensor wiring
• Disconnected sensor
• Faulty sensor with high internal resistance
• Short to reference voltage

Diagnostic steps

1. Monitor TGV 1 RH sensor voltage on scan tool
2. Inspect connector for secure connection
3. Test wiring for opens or shorts to voltage
4. Verify ground circuit
5. Test sensor resistance

Repair notes

Repair open wiring or replace the TGV position sensor.

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