DTC Code
DTC Definition
Lost Communication
U0129-87
With BSM
DTC Confirmation Procedure
Confirm that battery voltage is over 12 V before performing the following procedures.
Turn ignition switch to LOCK.
Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC).
Turn ignition switch to ON.
Use X-431 3G diagnostic tester to record and clear the DTCs stored in the ECM.
Start the engine and warm it up to normal operating temperature, and then select Read Code.
If the DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
If DTC is not detected, the malfunction indicated by the DTC is intermittent
CAUTION
When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and
component information.
Diagnosis Procedure
1
Check ECM ground point
a. Turn ignition switch to LOCK.
b. Check ECM grounds E-026 and E-028
Repair or replace ground wire harness or
NG
ground point
2
Check ECM connector and ABS connector
a. Disconnect ECM connector E-033.
b. Disconnect ABS connector E-085.
c. Check if connectors are normal.
Repair or replace connector
NG
Chery Automobile Co., Ltd.
06 - SQR484F ENGINE MANAGEMENT SYSTEM
DTC Detection
Condition
CAN line or connector
Ignition switch ON
ECM
Engine running
ABS
(See page
06-18).
Possible Cause
(See page
06-18).
OK
OK
173
06–
06