C1626

C1626

Component Location:

General Description
The ESC is a system to stabilize a car in an emergency (kine of under steering or over steering) by supplying appropriate wheel with braking pressure according to signal of yaw & G sensor, SAS, WSS, pressure sensor.
ESC system help to escape from facing in an accident.

DTC Description
Under normal conditions, the inlet valves of all four wheels are not closed during control for longer than 1.28 s or If the controller requests pressure-hold or pressure-decrease for longer than 1.28 s, a fault is detected.
The ABS/ESC warning ramp is turned ON and the EBD warning ramp is turned OFF.

DTC Detecting Condition:

Component Inspection
1. Ignition "OFF".
2. Engine "ON".
3. Does warning lamp remain On?

YES - Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.

NO - Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to "Verification of Vehicle Repair" procedure.

Verification of Vehicle Repair
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode
2. Using a scantool, Clear DTC.
3. Operate the vehicle within DTC Detecting Condition in General Information.
4. Are any DTCs present?

YES - Go to the applicable troubleshooting procedure.

NO - System performing to specification at this time.