Circuit Description
The height sensor monitors the exhaust valve on time when the vehicle is lowering and is limited to 255 seconds.
Conditions for Running the DTC
Ignition On.
Conditions for Setting the DTC
This DTC is set when the height sensor detects the exhaust valve has been on for 255 seconds and the height sensor did not detect the calibrated downward movement.
Action Taken When the DTC Sets
The height sensor disables the leveling functions.
Conditions for Clearing the DTC
The conditions that caused the DTC to set have been removed.
The ignition switch has been cycled from off to on.
Diagnostic Aids
A air line or exhaust valve blockage in the system will cause this DTC to set.
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
-
Tests for something mechanical that is not allowing the vehicle to lower.
-
Verifies the height connector to have a good connection.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Automatic Level Control Schematics | |||
1 | Did you perform the Automatic Level Control Diagnostic System Check? | Go to Step 2 | |
Did you find and correct the condition? | Go to Step 5 | Go to Step 3 | |
Inspect for poor connections at the harness connector of the height sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 5 | Go to Step 4 | |
4 |
Important: System untested code will continue to flash until self test has been completed after sensor replacement . Replace the height sensor. Refer to Automatic Level Control Sensor Replacement . Did you complete the replacement? | Go to Step 5 | -- |
5 | Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? | Go to Step 2 | System OK |
