FixVault
Home
›
Cadillac
›
2001
›
Catera
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Self-Diagnostics - 3.0L
›
Diagnostic Tests
›
DTC P1602: Knock Sensor Module Performance
›
Code Enable Criteria
Code Enable Criteria
Engine Coolant Temperature (ECT) is more than 104°F (40°C).
DTC sets when ECM detects a fault in the internal knock sensor module.