Diagnosis Procedure

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
   • Steering angle main control module
   • Chassis control module

Is the inspection result normal?

YES 

GO TO STEP 2  .

NO 

Repair the terminal and connector.

1. Disconnect the connector of chassis control module.
2. Check the continuity between the chassis control module harness connector terminals.

   Chassis control module harness connector			Continuity
   Connector No.	Terminal No.
   E22	19	11	Existed
   	7	8	Existed

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

Check the harness and repair or replace (if shield line is open) the root cause (chassis communication circuit side).

1. Connect the connector of chassis control module.
2. Disconnect the connector of steering angle main control module.
3. Check the resistance between the steering angle main control module harness connector terminals.

   Steering angle main control module harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   E26	14	15	Approx. 54 - 66

Is the measurement value within the specification?

YES 

GO TO STEP 4  .

NO 

Repair the steering angle main control module branch line.

Check the power supply and the ground circuit of the steering angle main control module. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES (Present error) 

Replace the steering angle main control module. Refer to REMOVAL AND INSTALLATION .

YES (Past error) 

Error was detected in the steering angle main control module branch line.

NO 

Repair the power supply and the ground circuit.