1.CHECK COMBINATION METER INPUT SIGNAL

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

   Terminals | Condition | Voltage (Approx.)
   (+) | (-)
   Combination meter | Ground
   Connector | Terminal
   M53 | 30 | When seat belt is fastened | 12 V
   When seat belt is unfastened | 0 V

Is the inspection result normal?
YES>>Replace combination meter
NO>>GO TO 2.
2.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect combination meter connector and seat belt buckle switch (driver side) connector.
3. Check continuity between combination meter harness connector terminal and seat belt buckle switch (driver side) harness connector terminal.

   Terminals | Continuity
   (+) | (-)
   Combination meter | Seat belt buckle switch (driver side)
   Connector | Terminal | Connector | Terminal
   M53 | 30 | B12 | 3 | Exist

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

   Terminals | Continuity
   (+) | (-)
   Combination meter | Ground
   Connector | Terminal
   M53 | 30 | Not existed

Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair harness or connector.
3.CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check harness continuity between seat belt buckle switch (driver side) harness connector terminal and ground.

Terminals | Continuity
(+) | (-)
Seat belt buckle switch (driver side) | Ground
Connector | Terminal
B12 | 2 | Exist

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