Chery Tiggo 2009, Service Manual

Page: 386 / 1903

Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL
NO.
ITEM CONDITION
DATA (DC
VOLTAGE)
32
Regulated sensor
supply
Ignition switch: ON
- Approximately 5 V
38
Electronic throttle
control actuator
(Position sensor)
•
Engine stopped
•
Accelerator pedal:
Fully released
4.24 V
•
Engine stopped
•
Accelerator pedal:
Fully depressed
0.72 V
54
Electronic throttle
control actuator
•
Engine stopped
•
Accelerator pedal:
Fully released
0.74 V
•
Engine stopped
•
Accelerator pedal:
Fully depressed
4.62 V
64 Motor 4
-
12 V or 0 V
65 Motor 3
66 Motor 2
12 V or 0 V
67 Motor 1
78 Sensor (GND) Approximately 0 V
On Board Diagnostic Logic
•
Self-diagnosis detection logic.
DTC NO. DTC DEFINITION
DTC DETECTION
CONDITION
DTC SET
CONDITION
POSSIBLE CAUSE
P0122
Throttle Position
Sensor (TPS) A
circuit low input
•
Ignition switch:
ON
•
Engine: Running
Signal output is
below minimum
acceptable range for
a few seconds
continuously.
•
Throttle Position
Sensor (TPS) or
misalignment
•
Harness or
connectors (Signal
circuit is open or
shorted)
•
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.
DIAGNOSIS & TESTING
03–
102
Chery Automobile Co., Ltd.