Diagnostic Aids

Prior to replacing control module, check resistance of all control module-controlled solenoids and relays. Replace any with a resistance value less than 20 ohms.

Fig 1: Code 32 Schematic ("G" Series) EGR Circuit Error Backpressure EGR With Solenoid

Fig 2: Code 32 Flow Chart (All Models) EGR Circuit Error Backpressure EGR With Solenoid