Chery T21 2014 Service Manual page 703

Problem Repair (No DTC)
If PEPS system has problems, but no DTC is stored in PEPS system, this problem is called a problem without
DTC.
Symptom
Instrument cluster indicator does not come on or
remains on
Troubleshooting recommendation: check corresponding components according to problem symptom, and
troubleshoot following the vehicle repair manual.
Diagnostic Help
1. Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC), and make it
communicate with vehicle electronic module by the data network.
2. Confirm that malfunction is current, and carry out diagnostic test and repair procedures.
3. If DTC cannot be deleted, the malfunction is current.
4. Visually check the related wire harness and connector.
5. Check and clean all wire harness connectors and grounds related to current DTC.
6. If multiple trouble codes were set, refer to the circuit diagrams to look for any common ground circuit or
power supply circuit applied to the DTC.
7. Refer to any Technical Bulletin that may apply to the malfunction.
Intermittent DTC Troubleshooting
If malfunction is intermittent, perform the followings:
 Check if connectors are loose.
 Check if wire harnesses are worn, pierced, pinched or partially broken.
 Wiggle related wire harnesses and connectors and observe if signal is interrupted in the related circuit.
 If possible, try to duplicate the conditions under which the DTC was set.
 Look for the data that has changed or the DTC to be reset during the wiggle test.
 Look for broken, bent, protruded or corroded terminals.
 Check and clean all wire harness connectors and grounding parts related to the current DTC.
 Remove the PEPS controller from the malfunctioning vehicle and install it to a new vehicle and perform a
test. If DTC cannot be cleared, the PEPS controller is malfunctioning. If DTC can be cleared, reinstall the
PEPS controller to original vehicle.
 If multiple trouble codes were set, refer to the circuit diagrams to look for any common ground circuit or
power supply circuit applied to the DTC.
 Refer to Technical Bulletin that is applied to the malfunction.
Chery Automobile Co., Ltd.
15 - SQR484F STARTING SYSTEM
Suspected Area
Instrument cluster indicator (broken)
Wire harness (incorrectly connected)
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19
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