DTC C1297/97: Steering Angle Sensor [12/2012 - ]: Procedure

1. Clear the DTC.

   Refer to DTC CHECK / CLEAR [12/2012 - 10/2015] Refer to DTC CHECK / CLEAR [10/2015 - 08/2016] Refer to DTC CHECK / CLEAR [08/2016 - ]

   Chassis > Four Wheel Drive > Clear DTCs 

2. Turn the ignition switch off.
3. Turn the ignition switch to ON again and check that no CAN communication system DTC(s) is output.

   Refer to DIAGNOSIS SYSTEM [12/2012 - 11/2013] Refer to DIAGNOSIS SYSTEM [11/2013 - 10/2015] Refer to DIAGNOSIS SYSTEM [10/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ]

4. Start the engine.
5. Drive the vehicle at a speed of 35 km/h (24 mph), turn the steering wheel to the right and left and check that no brake control system (steering angle sensor) DTC (C1432, C1433 or C1434) is output.

   Refer to DTC CHECK / CLEAR [12/2012 - 10/2015] Refer to DTC CHECK / CLEAR [10/2015 - ]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   Neither CAN communication system DTC nor brake control system DTC is output	A
   CAN communication system DTC is output	B
   Brake control system (steering angle sensor) DTC (C1432, C1433 or C1434) is output	C

   HINT: 

   When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING):  HOW TO PROCEED WITH TROUBLESHOOTING [12/2012 - 10/2015]  ,  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

Result: 

C 

REPAIR CIRCUIT INDICATED BY OUTPUT CODE (BRAKE CONTROL SYSTEM):  DIAGNOSTIC TROUBLE CODE CHART [12/2012 - 10/2015]  ,  DIAGNOSTIC TROUBLE CODE CHART [10/2015 - 08/2016]  ,  DIAGNOSTIC TROUBLE CODE CHART [08/2016 - ] 

Result: 

A 

See step  2

1. Remove the steering wheel and the column cover lower.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Steering Angle Sensor [Spiral with Sensor Cable Sub-assembly])

   Refer to REMOVAL [12/2012 - ]

2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.
3. Disconnect the steering angle sensor (spiral with sensor cable sub-assembly) connector.
4. Turn the ignition switch to ON.
5. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G12-4 (IG) - Body ground	Ignition switch ON	11 to 14 V
   G12-5 (BAT) - Body ground	Always	11 to 14 V

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Turn the ignition switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Steering Angle Sensor [Spiral with Sensor Cable Sub-assembly])

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G12-1 (ESS) - Body ground	Always	Below 1 Ω

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Chassis / Four Wheel Drive / Data List.
5. Read the value displayed on the Techstream.

   Chassis > Four Wheel Drive > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Steering Angle Value	Steering angle value	Min.: -3276.8° Max.: 3276.7°	Left turn: Increase Right turn: Decrease	Changes in proportion with the amount of steering wheel rotation during steering operation.

   Chassis > Four Wheel Drive > Data List 

   Tester Display
   Steering Angle Value

   OK

   The steering angle sensor value changes in accordance with the steering wheel movement.

Result: 

OK 

REPLACE 4WD ECU ASSEMBLY:  REMOVAL [12/2012 - ] 

Result: 

NG 

REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY:  REMOVAL [12/2012 - ]