How To Troubleshoot

1. Check the battery voltage.

   Voltage: 11 to 14V 

   NOTE: If the battery voltage is less than 11 V, recharge or replace the battery before starting the diagnostic procedures.

1. Check and record the diagnostic code and the freeze frame data.
2. Clear the diagnostic code and the freeze frame data.
3. Diagnostic code list recheck
4. Based on the recorded diagnostic code and the freeze frame data, reproduce the malfunction and check the diagnosis code again.
   NOTE:

   • When a diagnostic code is output, refer to "LIST OF DIAGNOSTIC CODES  ( )".
   • If an error code for CAN communication system is output, first troubleshoot CAN communication and repair it. (Refer to DTC U0073 CONTROL MODULE COMMUNICATION BUS "A" OFF; DTC U0100 ENGINE DATA, NOT RECEIVED; DTC U0101 TRANSMISSION DATA, NOT RECEIVED; DTC U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE; DTC U0140 MISSING DATA FOR BODY INTEGRATED UNIT 
   • If SSM4 cannot communicate with skid control computer (brake actuator ASSY), check CAN communication. (Refer to HOW TO TROUBLESHOOT )
   • If there is no respond from the skid control computer (brake actuator ASSY), check the power and voltage input circuit for the skid control computer (brake actuator ASSY). (Refer to DTC C1241 POWER SUPPLY VOLTAGE ERROR )
   RESULT DESCRIPTION
   
   

   Result	Go to
   Diagnostic code is not output. Malfunction can be checked and reproduced.	A
   Diagnostic code is output.	B
   Diagnostic code is not output. Malfunction cannot be checked and reproduced.	C

   1. Go to next step
   2. Refer to "LIST OF DIAGNOSTIC CODES  ( )" and perform troubleshooting for each code. Then go to step  7.
   3. Go to "Malfunction simulation (IN-32)".

1. Go to next step
2. Perform troubleshooting for relevant symptom and go to step  8.

1. Data monitor (Refer to DATA MONITOR )
2. Function inspection (Refer to FUNCTION INSPECTION )
3. ECM terminal arrangement (Refer to ECM TERMINAL ARRANGEMENT )

Complete