Inspection Procedure

1. Turn the engine switch off.
2. Disconnect the absorber control ECU connector (K72).
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K72-7 (CANH) - K72-8 (CANL)	Engine switch off	54 to 69 Ω

Fig 1: Identifying Absorber Control ECU Connector (K72)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE ABSORBER CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

OK: Go to next step 

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K72-4 (GND) - Body ground	Always	Below 1 Ω

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

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Value
   K72-1 (B) - Body ground	Engine switch on (IG)	10 to 14 V

Fig 2: Identifying Absorber Control ECU Connector (K72)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ABSORBER CONTROL ECU