Chery T21 2014 Service Manual page 893

DTC Code DTC Definition
Intermediate Shaft
P0791 Speed Sensor 'A'
Circuit
Intermediate Shaft
P0792 Speed Sensor 'A'
Circuit Range
DTC Confirmation Procedure:
Confirm that battery voltage is between 11 and 14 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), and make it
communicate with vehicle electronic module by the data network.
 Turn ignition switch to ON.
 Using X-431 3G diagnostic tester to record and clear the DTCs stored in the TCU.
 Turn ignition switch to LOCK and wait for a few seconds.
 Turn ignition switch to ON, and then select "Read Code".
 If 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. Please refer to Intermittent
DTC Troubleshooting.
Diagnosis Procedure
HINT:
After the fault is eliminated, verify DTC and symptom again.
1
Check wire harness connector
a. Turn ignition switch to LOCK.
b. Disconnect the primary shaft speed sensor connector.
c. Check if the primary shaft speed sensor connector is dirty, oxidized, loose or damaged.
Repair fault
NG
Chery Automobile Co., Ltd.
DTC Detection
Condition
Start engine and keep
it at following status for The input speed
at least 1 min: throttle signal is higher
opening not less than than the
10%, at D gear, engine allowable value
speed higher than 800 within a period
rpm
Start engine and keep
it at following status for
The input speed
at least 10 seconds:
signal exceeds
throttle opening not
the standard
less than 10%, at D
value
gear, engine speed
higher than 800 rpm
18 - QR019CHB CVT
DTC Set
Possible Cause
Condition
 Incorrect
installation of the
input speed sensor
 Signal circuit open
or short circuit
 Input speed sensor
power circuit poor
contact
 Input speed sensor
failure
 TCU signal
treatment circuit
failure
18
OK
59
18–