KEY REMINDER WARNING SYSTEM TERMINALS OF ECU

CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

1. Disconnect the DB, DE, DG and H80 ECU connectors.

2. Measure the resistance and voltage according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   DE-28 (GND1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   H80-4 (GND2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   DB-30 (BECU) - Body ground	W - Body ground	Power source	Always	11 to 14 V
   DG-1 (ALTB) - Body ground	W - Body ground
   DE-23 (KSW) - Body ground	L - Body ground	Unlock warning switch signal	No key in ignition key cylinder	10 kΩ or higher
   			Key in ignition key cylinder	Below 1 Ω

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the DB, DE, DG and H80 ECU connectors.

4. Measure the voltage according to the value(s) in the table below.

   Table 1. for LHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   DA-21 (DCTY) - Body ground	W - Body ground	Front door courtesy light switch LH	Driver side door closed	11 to 14 V
   			Ignition switch off and front door courtesy light switch LH off	Below 1 V

   Table 2. for RHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   DC-6 (DCTY) - Body ground	BR - Body ground	Front door courtesy light switch RH	Driver side door closed	11 to 14 V
   			Ignition switch off and front door courtesy light switch RH off	Below 1 V

   If the result is not as specified, the ECU may have a malfunction.