Diagnostic Aids

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

Fig 1: CODE 32, Schematic, EGR Sys. Error (5.0L & 5.7L C & K Series Cal. W/ 4L60E Trans.)

Fig 2: CODE 32, Schematic, EGR Sys. Error (5.7L & 7.4L C,G,K & P Series W/ 4L80E Trans)

Fig 3: CODE 32, Flowchart, EGR Sys. Error (5.0L & 5.7L C & K Series W/ 4L60E Trans; 5.7L & 7.4L C,G,K & P Series W/ 4L80E Trans.)