Inspection Procedure

1. Disconnect the TCM connector.
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value (s) in the table below.

   Standard Voltage 

   STANDARD VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   B40-18 (+B) - B40-8 (E1)	Engine switch on (IG)	9 to 14 V

   Fig 1: Identifying TCM Connector B40 Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: CHECK FOR INTERMITTENT PROBLEMS 

NG: Go to next step 

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

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   B40-8 (E1) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying TCM Connector B40 Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Reconnect the TCM connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TCM - BODY GROUND) 

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (TCM - EFI RELAY)