Chery A1 2009 - Performance

Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL
NO.
ITEM CONDITION
DATA
(DC VOLTAGE)
32
Regulated sensor
supply 2
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
Electronic throttle
control actuator
-
0 V or 12 V
65
Electronic throttle
control actuator
66
Electronic throttle
control actuator
12 V or 0 V
67
Electronic throttle
control actuator
73
Regulated sensor
supply 3
Approximately 5 V
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
P0221
Throttle Position
Sensor (TPS) B
performance
Ignition switch on or
after engine start
Rationally incorrect
voltage is sent to
ECM compared with
the signals from
TPS1 and TPS2.
• Electronic throttle
control actuator
(TPS1 and TPS2)
• Harness or
connectors
• Accelerator pedal
position sensor 2
• 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 the engine and warm it to normal operating temperature.
• With the scan tool, select view DTCs in the ECM.
• If the DTC is detected, the condition is current. Go to Diagnostic Procedure - Step 1.
DIAGNOSIS & TESTING
03
03–113
Chery Automobile Co., Ltd.