Chery Tiggo 2009 Service Manual page 1112

On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO.
23
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, view and erase stored DTCs in the TCM.
• Start engine and warm it to normal operating temperature, then select D position.
• Drive the vehicle up to 30 km/h or more at 3 or 4 gear.
• Driving the vehicle uphill will help maintain the driving conditions required for this test.
• With the scan tool, 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 08 Transaxle & Transfer Case for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
DTC DETECTION
DTC DEFINITION
Output speed
Vehicle is driving
sensor
DTC SET
CONDITION CONDITION
• The Transaxle
Control Module
(TCM) will set this
DTC when the TCM
didn't received pulse
signal from the
output shaft speed
sensor for above 1
seconds when the
vehicle is driving for
30 km/h at 3 or 4
gear.
• If the DTC was
set for 4 times, then
the A/T will be
locked in 3rd gear
(D gear) or shifted
to low gear when in
sports mode.
POSSIBLE CAUSE
• Output shaft speed
sensor
• Harness or
connectors (The
sensor circuit is open
or shorted)
• Transfer case
driven and drive gear
• TCM
08
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