DTC C15A5/65: Lock Mechanism Circuit: Procedure

1. Turn the engine switch on (IG).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   HINT: 

   With the connector connected to the VGRS ECU (front steering control ECU), measure the voltage from the rear of the connector.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   N103-2 (LV) - Body ground	Engine switch on (IG)	11 to 14 V
   N103-6 (LG) - Body ground	Engine switch on (IG)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (VGRS ECU [Front Steering Control ECU])

NG → See step   3 

OK: Go to next step 

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Start the engine.
4. Turn the Techstream on.
5. Enter the following menus: Chassis / VGRS / Data List.
   VGRS
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Lock Solenoid Voltage	Lock solenoid voltage/ Min.: 0.00 V Max.: 255.99 V	0 to 14 V	-

   OK

   0 to 14 V (while the engine is being started)

NG → See step   6 

OK → See step   7 

1. Turn the engine switch off.
2. Disconnect the VGRS ECU (front steering control ECU) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   HINT: 

   Measure the resistance of the steering actuator assembly at the connector of the VGRS ECU (front steering control ECU).

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N103-2 (LV) - N103-6 (LG)	Always	10 to 30 Ω
   N103-2 (LV) - Body ground	Always	100 kΩ or higher
   N103-6 (LG) - Body ground	Always	100 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to VGRS ECU [Front Steering Control ECU])

NG → See step   4 

OK → See step   6 

1. Turn the engine switch off.
2. Disconnect the N103 VGRS ECU (front steering control ECU) connector.
3. Disconnect the N38 steering actuator assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N103-2 (LV) - N38-7 (LV+)	Always	Below 1 Ω
   N103-6 (LG) - N38-16 (LG+)	Always	Below 1 Ω
   N103-2 (LV) - Body ground	Always	100 kΩ or higher
   N103-6 (LG) - Body ground	Always	100 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5