Inspection Procedure

1. When the master switch assembly's door control switch is operated, check that the locked doors unlock.

   Result 

   POWER DOOR LOCK SYSTEM
   
   

   Result	Proceed to
   Door locks operate normally	OK
   Door locks do not operate normally	NG

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM (See  POWER DOOR LOCK CONTROL SYSTEM   ) 

OK: GO TO NEXT STEP 

1. When another registered electrical key transmitter is used, check that the entry function operates normally.

   Result 

   ELECTRICAL KEY TRANSMITTER
   
   

   Result	Proceed to
   Entry function operates normally	A
   Entry function does not operate normally	B

B: Go to step   4 

A: GO TO NEXT STEP 

1. Remove the battery (lithium battery) from the transmitter (see TRANSMITTER BATTERY  ).
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TRANSMITTER BATTERY (VOLTAGE)
   
   

   Tester Connection	Condition	Specified Condition
   Battery positive (+) - Battery negative (-)	Always	2.1 to 3.2 V

NG: REPLACE TRANSMITTER BATTERY (See  TRANSMITTER BATTERY   ) 

OK: REPLACE ELECTRICAL KEY TRANSMITTER 

1. Bring the electrical key transmitter near the door control receiver, and perform a wireless operation check.

   HINT:

   When the electrical key transmitter is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

   Result 

   WAVE ENVIRONMENT
   
   

   Result	Proceed to
   Operation check fails	A
   Operation check is normal	B

   HINT:

   If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

B: AFFECTED BY WAVE INTERFERENCE 

A: GO TO NEXT STEP 

1. Remove the P MPX-B fuse from the passenger side junction block.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   FUSE (P MPX-B)
   
   

   Tester Connection	Condition	Specified Condition
   P MPX-B fuse	Always	Below 1 Ω

NG: REPLACE FUSE 

OK: GO TO NEXT STEP 

Fig 1: Identifying L15 ECU Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the L15 ECU connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   CERTIFICATION ECU - BATTERY
   
   

   Tester Connection	Condition	Specified Condition
   L15-20 (CUTB) - Body ground	Always	11 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

Fig 2: Identifying R37 Receiver Connector And L15 ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the R37 receiver connector.
2. Disconnect the L15 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   DOOR CONTROL RECEIVER - CERTIFICATION ECU AND BODY GROUND
   
   

   Tester Connection	Condition	Specified Condition
   R37-2 (+5)-L15-29 (RCO)	Always	Below 1 Ω
   R37-3 (DATA) - L15-38 (RDA)	Always	Below 1 Ω
   R37-4 (ASEL) - L15-37 (ASEL)	Always	Below 1 Ω
   R37-5 (RSSI)-L15-39 (RSSI)	Always	Below 1 Ω
   R37-6 (GND) - Body ground	Always	Below 1 Ω
   R37-2 (+5) - Body ground	Always	10 kΩ or higher
   R37-3 (DATA) - Body ground	Always	10 kΩ or higher
   R37-4 (ASEL) - Body ground	Always	10 kΩ or higher
   R37-5 (RSSI) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Replace the door control receiver with a normal one (see REMOVAL  ).
2. Check that it operates normally.

   OK: Operates normally 

NG: REPLACE CERTIFICATION ECU 

OK: END (DOOR CONTROL RECEIVER IS DEFECTIVE)