10.
CHECK APPS SIGNAL CIRCUIT FOR AN OPEN OR SHORT
• Check continuity between APPS1 terminal 4 and ECM terminal 16, APPS2 terminal 1 and ECM terminal 40.
• Continuity should exist.
• Check harness for a short to power or short to ground.
Is the check result normal?
Yes
>> Go to the next step.
No
>> Repair or replace the open circuit or short to power or short to ground in harness or connectors.
11.
CHECK APP SENSOR
• Connect all harness connectors that have been disconnected.
• Turn ignition switch on.
• Check voltage between ECM terminal 16 (APP sensor 1), and ECM terminal 40 (APP sensor 2) and ground
under the following conditions:
APP SENSOR REFERENCE DATA
ECM TERMINAL
NO.
ITEM CONDITION
VOLT (DC
VOLTAGE)
16
Accelerator pedal
position sensor 1
(APPS1)
Ignition switch: ON
Engine: Stopped
Accelerator pedal:
Fully released
0.72 - 0.74 V
Engine: Stopped
Accelerator pedal:
Fully depressed
3.95 V
40
Accelerator pedal
position sensor 2
(APPS2)
Engine: Stopped
Accelerator pedal:
Fully released
0.36 - 0.37 V
Engine: Stopped
Accelerator pedal:
Fully depressed
1.97 V
Is the check result normal?
Yes
>> Go to the next step.
No
>>
Replace the Accelerator Pedal Assembly (See Accelerator Pedal Position Sensor Removal & Installa-
tion in Section 03 Electronic Engine Controls).
Perform accelerator pedal position learning.
Perform throttle valve position learning.
12.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to 9DTC Confirmation Procedure9.
Is DTC P2138 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
03–168
Chery Automobile Co., Ltd.