Inspection Procedure

1. Check for DTC (see DTC CHECK / CLEAR ).

   OK: 

   DTC is not output. 

NG: CHECK FLOWCHART OF EACH DTC (See  DIAGNOSTIC TROUBLE CODE CHART  ) 

OK: Go to next step 

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 

   RESISTANCE REFERENCE CHART
   
   

   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

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

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   DTC C1917/25 is output	A
   DTC is not output	B

B: CHECK INTERMITTENT PROBLEMS 

A: REPLACE  FRONT ACTIVE STABILIZER CONTROL ECU