Inspection Procedure

1. Disconnect the A49 front active stabilizer control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE REFERENCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   A49-1 (LCN+) - A49-8 (LCN-)	Engine switch off	54 to 69 Ω
   A49-2 (CANH) - A49-3 (CANL)	Engine switch off	54 to 69 Ω

   Fig 1: Identifying A49 Front Active Stabilizer Control ECU Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : Go to Next Step 

1. Disconnect the e1 rear active stabilizer control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE REFERENCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   e1-1 (LCN+) - e1-8 (LCN-)	Engine switch off	54 to 69 Ω
   e1-2 (CANH) - e1-3 (CANL)	Engine switch off	54 to 69 Ω

   Fig 2: Identifying e1 Rear Active Stabilizer Control ECU Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : Go to Next Step 

1. Turn the engine switch off.
2. Exchange the front active stabilizer control ECU with the rear active stabilizer control ECU.
3. Connect Techstream to the DLC3.
4. Turn the engine switch on (IG) and press the Techstream main switch ON.
5. Clear the DTC (see DTC CHECK/CLEAR  ).
6. Check for DTC.

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   DTC is not output	A
   DTC C192F is output	B

A : CHECK INTERMITTENT PROBLEMS 

B : REPLACE FRONT ACTIVE STABILIZER CONTROL ECU  (See REMOVAL  )