Pinpoint Test F: Electronic Control Valve Tests

1. Start the engine
2. Set the air conditioning to on
3. Set the temperature to the lowest setting (all zones)
4. Set the blower speed to maximum
5. Set the recirculate switch to off
6. Using the manufacturer approved diagnostic system, check datalogger signal - Compressor/Motor Current (0x99AB)

Is the datalogger signal value > 0.5A?

• Yes  : Air conditioning compressor electronic control valve internal failure. Refer to the appropriate system wiring diagrams and install a new air conditioning compressor electronic control valve
• No  : Refer to the appropriate system wiring diagrams and check the air conditioning compressor electronic control valve circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair as necessary and retest