P2772
DTC P2772 Transfer "L4" Switch CircuitDESCRIPTION
The ECM detects the signal from the No. 1 transfer indicator switch (L4 position switch).
This DTC indicates that the transfer L4 position switch remains ON.
MONITOR DESCRIPTION
The ECM monitors the transfer L4 position switch to determine when the transfer-case L4 gear is engaged. If the transfer-case L4 gears remain engaged under all of the following conditions, the ECM will conclude that there is a malfunction of the transfer L4 position switch:
^ The transfer L4 position switch indicates that the L4 transfer-case gears are engaged.
^ Transfer-case shift lever is in the H position.
^ Transfer-case output shaft rpm is between 750 and 3,000 rpm.
^ The specified time period has elapsed.
Then the ECM will illuminate the MIL and store the DTC.
Monitor Strategy:
Typical Enabling Conditions:
Typical Malfunction Thresholds - Part 2:
Typical Malfunction Thresholds - Part 1:
Wiring Diagram:
INSPECTION PROCEDURES
Steps 1-2:
