Chery Tiggo 2009, Руководство по обслуживанию

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Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL NO. ITEM CONDITION DATA (DC VOLTAGE)
72
Camshaft Position (CMP)
sensor
•
Ignition switch: ON
•
Engine: Not cranking
4.8 - 5.2 V
•
Engine: Cranking 0.4 - 3.0 V
•
Engine: Idle 0.5 - 2.0 V
On Board Diagnostic Logic
•
Self-diagnosis detection logic.
DTC NO. DTC DEFINITION
DTC DETECTION
CONDITION
DTC SET
CONDITION
POSSIBLE CAUSE
23 CMP sensor Crank engine
Signal output is no
variance for 4
seconds
continuously (no
pulse signal).
•
CMP sensor
•
Harness or
connectors
•
ECM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
•
Turn ignition switch off.
•
Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
•
Turn ignition switch on.
•
With the scan tool, record and erase stored DTCs in the ECM.
•
Start engine and warm it to normal operating temperature, then select view DTC and data stream.
•
If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1.
•
If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 03 Electronic Engine Controls for more information.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Diagnostic Procedure
1.
CHECK GROUND CONNECTION
•
Turn ignition switch off.
•
Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con-
trols).
•
Inspect the ground connection E-208 (See Vehicle Wiring Harness Layout - Engine Room Harness (With Mit-
subishi 2.4L Engine) in Section 16 Wiring).
Is the ground connections OK?
Yes >>
Go to the next step.
No >>
Repair or replace ground connection.
DIAGNOSIS & TESTING
03
03–
505
Chery Automobile Co., Ltd.