1.CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL

1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector terminal and ground.

   Terminals | Voltage (Approx.)
   (+) | (-)
   Combination meter | Ground
   Connector | Terminal
   M53 | 7 | 5 V

Is the inspection result normal?
YES>>INSPECTION END
NO>>GO TO 2.
2.CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect combination meter connector and A/C auto amp. connector.
3. Check continuity between combination meter harness connector terminal and A/C auto amp. harness connector terminal.

   Combination meter | A/C auto amp. | Continuity
   Connector | Terminal | Connector | terminal
   M53 | 7 | M66 | 34 | Existed

4. Check continuity between combination meter harness connector and ground.

   Combination meter | Ground | Continuity
   Connector | Terminal
   M53 | 7 | Not existed

Is the inspection result normal?
YES>>INSPECTION END
NO>>Repair harness or connector.