P2772

DTC P2772 Four Wheel Drive (4WD) Low Switch Circuit Range / Performance

DESCRIPTION
The ECM detects the signal from the transfer L4 position switch.

This DTC indicates that the transfer L4 position switch remains on.





MONITOR DESCRIPTION
The ECM monitors the transfer-case L4 position switch to determine when the transfer-case L4 gear is engaged. If the transfer-case L4 gears remain engaged under the following conditions, the ECM will conclude that there is a malfunction of the L4 position switch, and illuminate the MIL and store the DTC:
- L4 switch indicates that the L4 transfer-case gears are engaged.
- Transfer-case shifter is in the "H" position.
- Transfer-case output shaft rpm is between 1000 and 3000 rpm.
- The specified time period has elapsed.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS

Part 1:

Part 2:

Wiring Diagram:

INSPECTION PROCEDURE

Step 1-2: