GPEC

P2072-ELECTRONIC THROTTLE CONTROL SYSTEM - ICE BLOCKAGE

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on and battery voltage greater than 10.4 volts.

- Set Condition:
The PCM detects that the throttle plate is stuck during extremely cold ambient temperature operation. The PCM will initiate a throttle de-icing procedure, and if the throttle blade still doesn't move, this DTC will set. The MIL will not illuminate. The vehicle will be in Limp home condition, limiting rpm and vehicle speed.





Diagnostic Test

1. THROTTLE BODY INSPECTION
Ignition on, engine not running.
With a scan tool, select View DTCs. Record the related Freeze Frame data.

NOTE: Diagnose any other DTCs before continuing.

NOTE: P2110 will set with P2072. P2118 may also set and the customer will experience a Limp-in condition. If either of these two faults are set, it indicates that the ice blockage software has run and no repair is necessary.

NOTE: This DTC will set in extreme cold ambient temperatures when the PCM detects that the throttle plate is stuck. By the time the vehicle is serviced, the condition may be corrected.

Turn the ignition off.
Remove the air cleaner assembly.
Check for any signs of a foreign material (ice or dirt) on the throttle plate or in the throttle bore that can cause the throttle plate to stick.
Were any problems found?

Yes

- Repair as necessary. If the throttle blade is frozen, allow the throttle body to thaw naturally in a warm location.
- Perform the PCM Verification Test Ver. 1Powertrain Verification Test.

No

- Test complete.