P2176

P2176 00

Throttle Mechanical, Can Not Reach Closed Position







Fault symptom
Check Engine
Cruise control not working.
Limp home

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Starter motor cranking or engine running.

Fault criteria:
Each time the control module is activated, it closes the damper completely in order to learn the lowest value. If the control module does not detect any damper movement, it determines that the damper is stuck due to impurities or ice. The control module emits a variable closing PWM for a duration of 2 s. If no motion is then detected, a DTC is generated.

Dependent
None

System reaction to a fault:
Correction of mass air flow/combustion for fuel calculation is blocked.
Limited acceleration and idle function.
Cruise control blocked.
Secondary air switched off.

OK report:
Fault criteria NOT fulfilled.

Fault handling:
Type III
(See Description of On-Board Diagnostics/Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:
Test value:
- Throttle Position Sensor 1
- Throttle Position Sensor 2

Activation:
- Throttle Position Test