Malfunction Code Retrieval (Without Scan Tool)

Locate EC-AT single pin service connector. Ground connector and turn ignition on. Warning codes are flashed on HOLD indicator lamp on dash. Codes are flashed in numerical order if more than one code is present. See MALFUNCTION CODE NUMBER charts for location of malfunction and MALFUNCTION CODE DIAGNOSIS 323 (1990) chart and MALFUNCTION CODE DIAGNOSIS 626 (1988-90) chart for diagnosis. See Figure- Figure .