Check reference values between ECM terminals and ground under the following conditions:
ECM TERMINAL
NO.
ITEM CONDITION
DATA
(DC VOLTAGE)
17 Sensor (GND)
Engine: Running
- Approximately 0 V
33
Regulated sensor
supply 1
- Approximately 5 V
37
Manifold Absolute
Pressure (MAP)
sensor
Engine running: Idle
Press accelerator
pedal slowly
Approximately 1.3 V
Press accelerator
pedal quickly
Up to approximately
4 V (instantaneous)
On Board Diagnostic Logic
• Self-diagnosis detection logic.
DTC NO. DTC DEFINITION
DTC DETECTION
CONDITION
DTC SET
CONDITION
POSSIBLE CAUSE
P0105
Manifold absolute
pressure/barometric
pressure circuit
Ignition switch ON
or after engine is
started
Signal output is out
of acceptable range
for a few seconds
continuously.
• MAP sensor
• Harness or
connectors
• ECM
P0106
Manifold absolute
pressure or
barometric pressure
range/performance
• MAP sensor
• Harness or
connectors
• ECM
DTC Confirmation Procedure:
Before performing the following procedure, confirm that battery voltage is more than 12 V.
• Turn ignition switch off.
• Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available.
• Turn ignition switch on.
• With the scan tool, record and erase stored DTCs in the ECM.
• Start the engine and warm it to normal operating temperature.
• With the scan tool, select view DTCs in the ECM.
• If the DTC is detected, the condition is current. Go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou-
bleshooting in Section 03 Electronic Engine Controls for more information).
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
DIAGNOSIS & TESTING
03–48
Chery Automobile Co., Ltd.
To Next Page
Loading...
