For 1990-2009 cars

### Conditions for Setting the DTC

A vehicle speed signal error occurs when the Control Module detects 5 or more transitions in the lateral accelerator switch input after 20 or more seconds without a vehicle speed input. If a fault is detected, the system will set error code 34 and activate the error lamp.

### Actions Taken when the DTC Sets

1. Record vehicle speed signal error.
2. Turn on both of the driver select switch L.E.D.s.

The system will continue to default to zero speed damping level (Sport mode).

### Diagnostic Aids

#### Notes on Intermittents

Refer to Intermittents and Poor Connections .

Also refer to DTC 32 Lateral Accelerator Switch Error .

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Is PCM code 24 set? | -- | Follow PCM diagnostics to repair | Go to Step 2
2 |

1. Disconnect the Control Module.
2. Check circuit 1298 by measuring the resistance from the PCM to the Control Module Connector pin C7.

Is the resistance greater than 2 ohms?

ohms

Go to Step 3

Go to Step 4

3 | Repair the open circuit condition in circuit 1298. Is the repair complete? | -- | Go to RTD Diagnostic System Check | --
4 | Check circuit 1298 for a short circuit to ground condition by measuring the resistance between the wiring harness pin C7 and ground. Is the resistance greater than 100 ohms? | ohms | Go to Step 6 | Go to Step 5
5 | Repair the short circuit to ground condition in circuit 1298. Is the repair complete? | ohms | Go to RTD Diagnostic System Check |
6 | Check circuit 1298 for a short circuit to battery/ignition condition by measuring the resistance between the wiring harness pin C7 and circuit 50. Is the resistance greater than 100 ohms? | -- | Go to Step 7 | Go to Step 8
7 | Replace the control module. Refer to Electronic Suspension Control Module Replacement . Is the control module replacement complete? | -- | Go to RTD Diagnostic System Check | --
8 | Repair short circuit to battery/ignition condition in circuit 1298. Is the repair complete? | -- | Go to RTD Diagnostic System Check | --