What this code means

The PCM has detected an internal processor error.

Symptoms

• Check Engine Light
• Erratic operation
• Possible no-start
• Multiple fault codes

Common causes

• PCM internal failure
• Power supply issue to PCM
• Severe voltage spike
• PCM overheating

Diagnostic steps

1. Check PCM power and ground circuits
2. Look for water or heat damage
3. Check for voltage spikes
4. Try PCM reprogramming

Repair notes

Usually requires PCM replacement. Check power and grounds first.

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