Inspection Procedure

1. Check the continuity in ECU-B fuse.
2. Check the continuity in GAUGE1 fuse.
3. Check the continuity in IG2 fuse.

NG: REPLACE FUSE 

OK: Go To Next Step 

1. Check voltage.
   1. Remove the combination meter assy with connectors still connected.
   2. Measure voltage between terminal C7-20 of combination meter assy connector and body ground.
      Fig 1: Checking Combination Meter Assy Connector Terminals (Power Source Circuit)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Voltage: 10 - 14 V 
   3. Turn the ignition switch to ON.
   4. Measure voltage between terminal C7-39 of combination meter assy connector and body ground.
      1. Voltage: 10 - 14 V 
   5. Turn the ignition switch to ON.
   6. Measure voltage between terminal C7-40 of combination meter assy connector and body ground.
      1. Voltage: 10 - 14 V 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go To Next Step 

1. Check continuity.
   1. Disconnect the "C7" connector from combination meter assy.
   2. Check continuity between terminal C7-1 of combination meter assy connector and body ground.
      1. OK: Continuity exists 
   3. Check continuity between terminal C7-21 of combination meter assy connector and body ground.
      Fig 2: Checking Combination Meter Assy Connector Terminals (Ground Circuit)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. OK: Continuity exists 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go To Next Step 

CHECK AND REPLACE COMBINATION METER ASSY