P0506 - Idle Control System Rpm Lower Than Expected - Chery Tiggo 2009 Service Manual

P0506 - Idle Control System RPM Lower Than Expected

• Self-diagnosis detection logic.
DTC NO.
P0506
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 engine and warm it up to the normal operating temperature then select view DTC.
• If DTC is detected, go to Diagnostic Procedure - Step 1.
• If the DTC is not detected, the DTC condition is intermittent (See Diagnosis & Testing Diagnostic Help in Sec-
tion 03 Electronic Engine Controls).
NOTE :
If DTC P0506 is displayed with other DTCs, perform this diagnostic procedure before other DTCs.
NOTE :
While performing electrical diagnosis & testing, always refer to the electrical schematics for specific circuit
and component information.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
DTC DETECTION
DTC DEFINITION
• Engine is running.
• With the engine
idling in drive, the
brake applied,
engine run time
Idle control system below a calibrated
RPM lower than minimum value, and
expected no VSS, MAF/MAP,
ECT, TPS, ETC,
Crankshaft Position
sensor, fuel system,
or injector DTCs
present.
DTC SET
CONDITION CONDITION
ECM detected that
the idle speed is
less than the
acceptable range.
POSSIBLE CAUSE
• Electronic throttle
03
control actuator
• Intake air leak
• ECM
191
03–