Steering Pad Switch Circuit [10/2014 - 09/2017]: Procedure

1. Confirm the vehicle specification.

   Result

   Result	Proceed to
   w/ Dynamic Radar Cruise Control System	A
   w/o Dynamic Radar Cruise Control System	B

Result: 

B 

See step  7

Result: 

A 

See step  2

1. Remove the steering pad switch assembly (Lane Departure Alert Main Switch).

   Refer to REMOVAL [10/2014 - 09/2017]

2. Inspect the steering pad switch assembly (Lane Departure Alert Main Switch).

   Refer to INSPECTION [10/2014 - 09/2016] Refer to INSPECTION [09/2016 - 09/2017]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY (LANE DEPARTURE ALERT MAIN SWITCH). Refer to  REMOVAL [10/2014 - 09/2017] 

Result: 

OK 

See step  3

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [10/2014 - 09/2017]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [10/2014 - 09/2017]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017] 

Result: 

OK 

See step  4

1. Disconnect the I4 spiral cable sub-assembly connector.
2. Disconnect the T10 lane departure warning camera connector.
3. Disconnect the I19 driving support ECU assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I4-12 (DIST) - T10-4 (LKSW)	Always	Below 1 Ω
   I4-2 (ECC) - Body ground	Always	Below 1 Ω
   I4-12 (DIST) - I19-6 (SPSW)	Always	Below 1 Ω
   I4-12 (DIST) or T10-4 (LKSW) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Replace the driving support ECU assembly with a new one.

   Refer to REMOVAL [10/2014 - 09/2017]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Check that the lane departure alert indicator light illuminates on the combination meter assembly when the lane departure alert system is turned on the lane departure alert main switch.

   Result

   Result	Proceed to
   The lane departure alert indicator light illuminates on the combination meter assembly when the lane departure alert system is turned on using the lane departure alert main switch	A
   The lane departure alert indicator light does not illuminate on the combination meter assembly when the lane departure alert system is turned on using the lane departure alert main switch	B

Result: 

A 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2014 - 09/2017] 

Result: 

B 

END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) 

1. Remove the steering pad switch assembly (Lane Departure Alert Main Switch).

   Refer to REMOVAL [10/2014 - 09/2017]

2. Inspect the steering pad switch assembly (Lane Departure Alert Main Switch).

   Refer to INSPECTION [10/2014 - 09/2016] Refer to INSPECTION [09/2016 - 09/2017]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY (LANE DEPARTURE ALERT MAIN SWITCH). Refer to  REMOVAL [10/2014 - 09/2017] 

Result: 

OK 

See step  8

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [10/2014 - 09/2017]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [10/2014 - 09/2017]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017] 

Result: 

OK 

See step  9

1. Disconnect the I4 spiral cable sub-assembly connector.
2. Disconnect the T10 lane departure warning camera connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I4-12 (DIST) - T10-4 (LKSW)	Always	Below 1 Ω
   I4-12 (DIST) or T10-4 (LKSW) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  10

1. Disconnect the I4 spiral cable sub-assembly connector.
2. Disconnect the A35 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I4-2 (ECC) - A35-41 (ECCS)	Always	Below 1 Ω
   I4-2 (ECC) or A35-41 (ECCS) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2014 - 09/2017] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR