Chery Tiggo 2009 Service Manual page 649

10.
CHECK INJECTOR RESISTANCE
• Check resistance as table shown.
• Check the fuel injector resistance as shown in the following:
INJECTOR INJECTOR
NO. TERMINAL
1 1 & 2
2 1 & 2
3 1 & 2
4 1 & 2
• Connect ECM connector.
• Connect injector connector.
• Check the fuel injector voltage as shown in the following:
TERMINAL NO.
6
7
27
47
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace injector.
11.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• See DTC Confirmation Procedure .
Is DTC P0261, P0264, P0267 or P0270 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.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
RESISTANCE
(APPROXIMATELY)
(20°C)
11 - 16
ITEM
Injector 2
Injector 3
Injector 1
Injector 4
CONDITION
• Engine is running
• Warm-up condition
• Idle
• Accelerate suddenly
DATA (AVERAGE DC
VOLTAGE)
Voltage: 11 - 14 V
365
03–
03