Chery A1 2009 Service Manual page 185

4.
CHECK TPS SIGNAL CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch off.
• Disconnect the ECM electrical connector.
• Check continuity between the following terminals:
TPS TERMINAL
• Continuity should exist.
• Check harness for short to power or short to ground.
Is the check result normal?
Yes >>
Go to step 6.
No >>
Go to the next step.
5.
DETECT MALFUNCTIONING PART
• Check the harness for an open, a short to ground or a short to power between TPS connector terminal 2 and
ECM connector E-601, terminal 78
Is the check result normal?
Yes >>
Go to the next step.
No >>
Repair or replace harness or connectors.
6.
CHECK THE TPS RESISTANCE
• Check the resistance between TPS terminals 2 and 3.
• 2 k ± 20 % (20°C) should exist.
• Slowly open the throttle, the TPS resistance value should change in a linear movement with the throttle as it
opens.
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace the TPS.
Perform the TPS self-learning procedure.
78
03–
DIAGNOSIS & TESTING
TPS SIGNAL CIRCUIT
6
5
ECM TERMINAL
54
38
Chery Automobile Co., Ltd.