Chery Tiggo. Manual — part 161
8.
CHECK THE TPS GROUND CIRCUIT FOR AN OPEN OR SHORT
• Check harness continuity between electronic throttle control actuator terminal 2 and ECM terminal 78.
• Continuity should exist.
• Also check harness for short to power and short to ground.
Is the check result normal?
Yes
>>
Go to the next step.
No
>>
Repair or replace circuit for an open or short to power or short to ground in harness or connectors.
9.
CHECK TPS
• Connect all harness connectors disconnected.
• Turn ignition switch on.
• Check voltage between ECM terminals 54 (TPS1 signal), 38 (TPS2 signal) and ground under the following con-
ditions:
TPS
TERMINAL
NO.
ITEM
CONDITION
DATA (DC
VOLTAGE)
5
Throttle
Position
Sensor 2
(TPS2)
Ignition
switch:
ON
• Engine
stopped
•
Accelerator
pedal:
Fully
released
4.24 V
• Engine
stopped
•
Accelerator
pedal:
Fully
depressed
0.72 V
6
Throttle
Position
Sensor 1
(TPS1)
• Engine
stopped
•
Accelerator
pedal:
Fully
released
0.74 V
• Engine
stopped
•
Accelerator
pedal:
Fully
depressed
4.62 V
Is the check result normal?
Yes
>>
Go to the next step.
No
>>
Replace the Electronic Throttle Control Actuator (See Electronic Throttle Control Actuator Removal &
Installation in Section 03 Electronic Engine Controls).
DIAGNOSIS & TESTING
03
10.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to ⬙DTC Confirmation Procedure⬙.
Is DTC P0221 still present?
Yes
>>
Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>
The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
P0261 - Cylinder 1 Injector Circuit Low
P0264 - Cylinder 2 Injector Circuit Low
P0267 - Cylinder 3 Injector Circuit Low
P0270 - Cylinder 4 Injector Circuit Low
DIAGNOSIS & TESTING
LTSMW030029T
03
DIAGNOSIS & TESTING
LTSMW030030T
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