Inspection Procedure

CHECK FUSE (ECU-B FUSE)

Fig 1: Identifying ECU-B Fuse
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1. Remove the fuse from the instrument panel J/B.
2. Check the continuity of the fuse.
  Standard: Continuity
1. NG: REPLACE FUSE
2. OK: Go To Next Step
CHECK TVIP ECU

Fig 2: Checking Voltage Between Terminals Of ECU Connector
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1. Disconnect the TVIP ECU connector.
2. Check the voltage between the terminals of the ECU connector, as shown in the illustration and table.
  Standard:
Fig 3: TVIP ECU Connector Terminals Specified Condition Chart
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1. NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
2. OK: Go To Next Step
CHECK WIRE HARNESS (TVIP ECU <--> BODY GROUND)

Fig 4: Disconnecting TVIP ECU Connector
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1. Disconnect the TVIP ECU connector.
2. Check the continuity between the terminal the of the TVIP ECU connector and the body ground, as shown in the illustration and table.
  Standard:
Fig 5: TVIP ECU Connector & Body Ground Continuity Chart
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1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
2. OK: CHECK AND REPLACE TVIP ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )