Test L - Wide Open Throttle (Wot) A/C Cut-Out Output Circuit Check
- Turn ignition off and wait 10 seconds. Disconnect harness at wide open throttle A/C cutout solenoid. With DVOM on 200 ohm scale, measure solenoid resistance. If reading is 50-100 ohms, reconnect solenoid and go to next step. If reading is less than 50 ohms or more than 100 ohms, replace solenoid and repeat Quick Test.
- Turn ignition on (engine off). With DVOM on 20 volt scale, connect positive lead to vehicle power circuit at cutout solenoid and negative lead to good ground. If reading less than 10.5 volts, repair open circuit and repeat Quick Test. If reading 10.5 volts or more, go to next step.
- Turn ignition off and wait 10 seconds. Disconnect 60-pin connector at ECA and inspect. Repair as required. Connect breakout box and leave ECA disconnected. With DVOM on 200 ohm scale, measure continuity from box pin 54 to wide open throttle A/C cutout circuit at solenoid harness. If reading 5 ohms or more, repair open circuit and repeat Quick Test. If reading less than 5 ohms, go to next step.
- Turn ignition off and wait 10 seconds. Disconnect harness at cutout solenoid. Breakout box installed and ECA disconnected. With DVOM on 200,000 ohm scale, measure resistance from box pin 54 to pins 37 and 57. If readings 10,000 ohms or more, go to next step. If readings less than 10,000 ohms, repair short to power and repeat Quick Test.
- Turn ignition off and wait 10 seconds. Breakout box installed and ECA and cutout solenoid disconnected. With DVOM on 200,000 ohm scale, measure resistance from box pin 54 to pins 40, 46 and 60 in turn. If readings less than 10,000 ohms, repair short to ground and repeat Quick Test. If readings 10,000 ohms or more, replace ECA and repeat Quick Test.