System Diagnosis

NOTE: Before testing transmission, ensure fluid level is correct and throttle and shift cables are properly adjusted. Ensure engine starts with shift lever in Park and Neutral to ensure proper adjustment of park/neutral position switch. Transmission must first be tested by checking for stored codes. See RETRIEVING CODES .

NOTE: For basic hydraulic tests and symptom trouble shooting, see SUZUKI 4-SPEED OVERHAUL article.

The TCM monitors transmission operation and contains a self-diagnostic system which stores a trouble code if an electronic control system failure or problem exists. If a problem exists in the No. 1 or No. 2 solenoids or speed sensors and trouble code is set, the TCM delivers a signal to blink the OD OFF light on instrument panel to warn the driver.