Inspection Procedure

CHECK: 

Check continuity of ECU-B2, GAUGE and DOOR(FR) fuse.

OK: 

Continuity

1. NG: Replace the failure fuse. 
2. OK: Go to Next Step 

PREPARATION: 

Turn ignition switch ON.

CHECK: 

Measure voltage between terminals SIG, and GND.

OK 

Voltage: 10-14V 

PREPARATION: 

1. Turn ignition switch OFF.
2. Disconnect the driver door ECU connector.

CHECK: 

Measure voltage between terminals BDR, CPUB and GND.

OK: 

Voltage: 10-14V 

1. seePROBLEM SYMPTOMS TABLE 
2. OK: Proceed to next circuit inspection shown on problem symptoms table. (See  PROBLEM SYMPTOMS TABLE  ) 
3. NG: Go to Next Step 

1. NG: Repair or replace wire harness or connector 
2. OK: Go to next step. 

   Check and repair wire harness and connector between ECU and battery.