Inspection Procedure

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

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   +B (E13-1) - E (E13-17)	Always	10 to 14 V

Fig 1: Inspecting Certification ECU (+B Terminal)

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

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

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   RC0 (E13-29) - E (E13-17)	Engine switch off, all doors closed and transmitter switch not pressed	Below 1 V
   	Engine switch off, all doors closed and transmitter switch pressed	4.6 to 5.4 V

Fig 2: Inspecting Certification ECU (RC0 Terminal)

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OK: Go to step  4

NG: Go to Next Step 

1. Disconnect the E13 certification ECU connector.
2. Measure the voltage and resistance according to the value(s) in the table below.

   Standard 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   RC0 (E13-29) - Body ground	Always	Below 1 V
   	Always	10 kΩ or higher

Fig 3: Checking Harness And Connector (Certification ECU - Battery - Body Ground)

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE CERTIFICATION ECU 

1. Disconnect the M5 door control receiver connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   RC0 (E13-29) - +5 (M5-2)	Always	Below 1 Ω

Fig 4: Checking Harness And Connector (Certification ECU - Door Control Receiver)

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

1. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   GND (M5-6) - Body ground	Always	Below 1 Ω

Fig 5: Checking Harness And Connector (Body Ground)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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