Check The App Sensor; Check The Tps Signal Circuit For An Open And Short - Chery Tiggo 2009 Service Manual

6.

CHECK THE APP SENSOR

• Connect all harness connectors disconnected.
• Turn ignition switch on.
• Check voltage between ECM terminals 16 (APP sensor 1 signal), 40 (APP sensor 2 signal) and ground under
the following conditions:
ECM APP
TERMINAL SENSOR
NO. TERMINAL
Accelerator
APP
Pedal
16 sensor Position
terminal 4 Sensor 1
(APPS1)
Accelerator
APP
Pedal
40
sensor Position
terminal 1 Sensor 2
(APPS2)
Is the check result normal?
Yes >>
Go to step 10.
No >>
Replace the Accelerator Pedal Assembly (See Accelerator Pedal Position Sensor Removal & Installation
in Section 03 Electronic Engine Controls).
7.

CHECK THE TPS SIGNAL CIRCUIT FOR AN OPEN AND SHORT

• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check harness continuity between electronic throttle control actuator terminal 5 and ECM terminal 38.
• Continuity should exist.
• Also check harness for a short to power and short to ground.
Is the check result normal?
Yes >>
Go to the next step.
No >>
Repair circuit for an open or short to power or short to ground in harness or connectors.
154
03–
DIAGNOSIS & TESTING
ITEM CONDITION
• Engine
stopped
•
Accelerator
pedal:
Fully
released
• Engine
stopped
•
Accelerator
pedal:
Fully
Turn depressed
ignition
• Engine
switch on
stopped
•
Accelerator
pedal:
Fully
released
• Engine
stopped
•
Accelerator
pedal:
Fully
depressed
VOLT (DC
VOLTAGE)
0.72 -
0.74 V
3.95 V
0.36 -
0.37 V
1.97 V
Chery Automobile Co., Ltd.