Engine Error
P0605
Internal Control Module Read Only Memory (ROM) Error
Severity
High
Symptoms
Vehicle stuck in limp mode, dash warning lights illuminated, loss of power
Common Causes
- Internal PCM ROM failure
- Bad aftermarket performance chip
- Poor battery voltage during startup
- Extreme heat damage to PCM
How to Fix
- 1 Remove external performance chips
- 2 Test battery and charging system
- 3 Replace Engine Control Module (ECM/PCM)
Estimated Repair Cost
USD
$100
–
$1200
PCM Replacement: $500 - $1,200