Diesel Data: Automotive Repair

Manufacturer Code Charts: 1306




Navigation System DTC Troubleshooting: 1306

DTC 1306: Vehicle Speed Pulse

NOTE:

- Check the vehicle battery condition first. Testing and Inspection

- Before you troubleshoot, make sure to follow the general troubleshooting information. Reading and Clearing Diagnostic Trouble Codes

1. Clear the hard error code. Reading and Clearing Diagnostic Trouble Codes

2. Turn the ignition switch to LOCK (0), and then start the engine.

3. Check for the hard error code. Reading and Clearing Diagnostic Trouble Codes

Is DTC 1306 indicated?
YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time.


4. Go into the Self-Diagnosis mode, and use the Car Status test Navigation System Diagnostic Mode to check the vehicle speed pulse.

5. Drive the vehicle, and watch the VSP signal.

Does the VSP signal change from [0] to [1] as you drive?
YES - Replace the navigation unit. Service and Repair

NO - Do the symptom troubleshooting for vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position. Symptom Troubleshooting