Dtc Failure Check Sheet Index - Chery automobile Service Manual

DTC Failure Check Sheet Index

Condition of Failure
Turn the ignition switch to "ON" (under the engine shut down), and the ABS
warning lamp doesn't light
The warning lamp doesn't extinguish after the engine starts
Abnormal ABS
operation
Too long brake pedal travel
Great force required to step on the brake pedal
Without DTC output (fail to communicate with the diagnostic tester)
DTC FAILURE CHECK SHEET
ABS hydraulic pump
1. The DTC is 01276
[Description] The ABS ECU will monitor the motor failure to
operate normally, and then record this DTC when the
vehicle speed exceeds 20 km/h.
[Hint] The occurrence of this DTC may be caused due to the
disconnection of harness between the motor and ECU.
Use the hydraulic unit function of the diagnostic tester
to test or drive the motor and take this testing.
Caution: If the battery discharges excessively, the motor will fails to be driven, and thus we
shall confirm firstly whether the battery voltage is normal before the motor drive
testing is conducted, and the vehicle shall be in stationary state when the motor drive
testing is conducting.
Uneven braking force at both sides
Braking force shortage
ABS fails to operate when slightly stepping on the brake
pedal (the vehicle is in stationary state)
ABS operates when slightly stepping on the brake pedal
(the vehicle is in driving state)
The brake pedal vibrates seriously when the ABS works
P-29
Possible Cause
* Power supply broken
circuit or earth
* Motor harness
uncoupling
* Motor damaged