FixVault
Home
›
Pontiac
›
2001
›
Aztek Base, AWD
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls Self-Diagnostics
›
Diagnostic Tests
›
DTC P0403: EGR Solenoid Control Circuit
›
Diagnostic Aids
Diagnostic Aids
Check for poor connection at PCM or EGR valve harness connectors.