Permanent Fault

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECM-3400 is stored within 2 minutes if the control module detects a fault in control module knock control circuit.

Substitute value
- ignition retarded for safety reasons
- reduced boost pressure

Possible source
- defective control module

Fault symptom[s]
- malfunction indicator lamp (MIL) lit