C1702

DTC C1702 VARIANT CODING ERROR

COMPONENT LOCATION
Refer to DTC C1235. C1235

GENERAL DESCRIPTION
There is no hardware difference of the HECU according to the vehicle's specification, just software changes for different vehicle parameters used for ESC control. The HECU stores a classified variant code value according to the received data (engine types, engine displacements, and type of transmission). The HECU reads various parameters according to the stored variant value in the memory used by the ESC control.

DTC DESCRIPTION
The HECU checks the variant code after ignition start up. If a inappropriate variant code is detected or there is no variant code, a fault is detected.

DTC DETECTING CONDITION:

MONITOR SCANTOOL DATA
VARIANT CODING
1. Check for improper installation of EMS/PCM (ECM & TCM)/ESC.
2. Connect Scantool to Data Link Connector (DLC).
3. Ignition "ON".
4. Go in Anti-Lock brake system (figure 1).
5. Perform variant code checks as per DTC found.
6. Disconnect Scantool.
7. Ignition "OFF" and then ignition "ON". Go to "Component Inspection Procedure".





COMPONENT INSPECTION
Refer to DTC C1235. C1235

VERIFICATION OF VEHICLE REPAIR
Refer to DTC C1101. C1101