DTC B2414: Steering Position Sensor Malfunction: Procedure

1. Check that the following vehicle stability control system DTC is not output.

   Result

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

B → See step   8 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / AFS / Data List.
5. Read the display on the Techstream.
   AFS (AFS ECU)
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Steer Sens Sig	Steering angle sensor signal value / -384° to 382.5°	Approx. 0° (When steering wheel is straight)	-

   OK

   Condition sign can be displayed.

   Result

   Result	Proceed to
   OK (When checking from Problem Symptoms Table)	A
   OK (When checking from Diagnostic Trouble Code Chart)	B
   NG	C

C → See step   3 

B → See step   6 

A → See step   5 

1. Disconnect the J23 steering angle sensor connector.
   Fig 1: Identifying J23 And A27 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Steering Angle Sensor)
   *2	Front view of wire harness connector (to AFS ECU)

2. Disconnect the A27 AFS ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J23-7 (SS1-) - A27-8 (SS-)	Always	Below 1 Ω
   J23-8 (SS1+) - A27-7 (SS+)	Always	Below 1 Ω
   A27-8 (SS-) - Body ground	Always	10 kΩ or higher
   A27-7 (SS+) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the A27 AFS ECU connector.
   Fig 2: Identifying AFS ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (AFS ECU)

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A27-7 (SS+) - A27-8 (SS-)	Engine switch on (IG)	Pulse generation

NG → See step   6 

OK → See step   7