Inspection Procedure

1. Disconnect the D33 main body ECU connector.
2. Disconnect the J13 door control receiver connector.
3. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   D33-16 (RDA) - J13-2 (RDA)	Below 1 Ω
   D33-16 (RDA) or J13-2 (RDA) - Body ground	10 kΩ or higher
   D33-17 (PRG) - J13-3 (PRG)	Below 1 Ω
   D33-17 (PRG) or J13-3 (PRG) - Body ground	10 kΩ or higher

4. Reconnect the main body ECU connector.
5. Reconnect the door control receiver connector.
Fig 1: Identifying D33 Main Body ECU Connector And J13 Door Control Receiver Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the J13 door control receiver connector.
2. Measure the voltage.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   J13-5(+B)-Body ground	Always	11 to 14 V

3. Reconnect the door control receiver connector.
Fig 2: Identifying J13 Door Control Receiver Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (+B CIRCUIT) 

OK: GO TO NEXT STEP 

1. Disconnect the J13 door control receiver connector.
2. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   J13-1 (GND) - Body ground	Below 1 Ω

3. Reconnect the door control receiver connector.
Fig 3: Identifying J13 Door Control Receiver Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (E CIRCUIT) 

OK: GO TO NEXT STEP 

1. Replace the door control receiver.
2. Perform the REGISTRATION  procedures.

   HINT:

   If a new or normal functioning door control receiver is available, connect it and check if the wireless door lock function is normal or the DTC is output. If the alternative receiver functions normally, replace the original door control receiver.

   NEXT: GO TO NEXT STEP 

1. Clear the DTC.
2. Check if the same DTC is detected.

   HINT:

   Reinstall the parts, such as sensors and connectors, and restore the vehicle to its previous conditions before rechecking for DTCs.

   Result: 

   RESULT REFERENCE
   
   

   Condition	Proceed to
   DTC (B1242) is output	A
   DTC (B1242) is not output (When troubleshooting in accordance with DTC CHART)	B
   DTC (B1242) is not output (When troubleshooting in accordance with PROBLEM SYMPTOMS TABLE)	C

B: END 

C: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

A: REPLACE MAIN BODY ECU