On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION
DTC Detection
Condition
DTC Set Condition POSSIBLE CAUSES
P2904 Clutch error Vehicle is driving
• The Automated
Manual Transaxle
(AMT) control
module will set this
DTC when the AMT
control module
detected the clutch
not opening before it
tries to operate the
clutch solenoid
valve.
• AMT control
module will set this
DTC when it
detected the clutch
closing during the
AMT engagement.
• If this DTC is set,
the AMT can only be
shifted up to 3rd
gear forcibly.
• Clutch position
sensor
• Clutch solenoid
valve
• Harness or
connectors (The
sensor circuit is open
or shorted)
• AMT control
module
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• After connection, press POWER key to start X-431.
• Turn ignition switch on, with the scan tool, view and erase stored DTCs in the Automated Manual Transaxle
(AMT) control module.
• Start engine and warm it to normal operating temperature.
• Drive the vehicle in 1st, 2nd, 3rd, 4th and 5th gears.
• 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 for more information).
NOTE :
• If DTC P0805 is present, diagnose and repair it before continuing with this test.
• Using the appropriate diagnostic test tool, you can diagnose the AMT control module harness while the AMT con-
trol module is still connected. This will help prevent electrical connector terminal damage.
DIAGNOSIS & TESTING
08
08–97
Chery Automobile Co., Ltd.
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