P0818

DTC P0818 Driveline Disconnect Switch Input Circuit

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The ECM detects the signal from the transfer neutral position switch.

This DTC indicates that the transfer neutral position switch remains ON.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

The ECM detects whether or not the transfer gear is in the neutral position by monitoring the signal from the transfer neutral position switch.

If the ECM detects that the transfer-case is in neutral under the following conditions, the ECM will conclude that there is a malfunction of the transfer-case neutral position switch:
- Transfer-case neutral position switch indicates that the transfer case is in neutral.
- Transfer-case shifter is in the "H" position.
- The vehicle is traveling at 25 km/h (16 mph) or more.
- The neutral switch has been ON for more than thirty seconds.

If all of the above conditions are detected, the ECM will conclude that there is a malfunction of the transfer-case neutral position switch, illuminate the MIL and store the DTC.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE