Procedure should include
- inspecting, testing, and replacing oil temperature and pressure switches and sensors
- checking the operation of the parking brake indicator light system
- checking the operation of the brake stop light system and adjusting and servicing, as needed
- diagnosing intermittent, high, low, or no gauge readings
- testing the gauge circuit voltage regulators (limiters) and replacing, as needed
- inspecting and testing gauges and gauge-sending units and replacing, as needed
- inspecting and testing connectors, wires, and printed circuit boards of gauge circuits and repairing or replacing, as needed
- diagnosing the incorrect operation of warning devices and other driver information systems
- diagnosing intermittent, high, low, or no readings on electronic instrument clusters
- inspecting and testing sensors, sending units, connectors, and wires of electronic instrument circuits and repairing or replacing, as needed.
Process/Skill Questions:
- How would one describe a balancing-coil gauge system?
- How would the technician test a gauge sending unit?
- What is the purpose of the instrument voltage regulator (IVR)?