DTC 1306: Vehicle Speed Pulse (With Display Audio) (2017)
NOTE:
- First, check the Vehicle 12 volt battery condition .
- This navigation DTC sets when there is a problem with the VSP circuit.
- Check for aftermarket accessories that may interfere with the navigation system.
- Check the GPS reception in an open area.
- Aftermarket metallic window tint or electronic devices located near the audio-navigation unit or the GPS antenna can potentially interfere with the operation of the navigation system.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information - Refer to: How to Troubleshoot the Navigation System (With Display Audio) (2017) .
- Check the connectors for poor connections or loose terminals.
- Problem verification
-1. Clear the hard error codes.
- 2. Test-drive the vehicle at steady speed more than 20 km/h (12 mph) for about 1 minute.
- 3. Check for hard error codes.
Is DTC 1306 indicated?
YES
The failure is duplicated, go to step 2.
NO
Intermittent failure, the system is OK at this time.
- Audio-Navigation unit operation check
-1. Go into the System Diagnostic Mode, and select the Vehicle Status in the Unit Check.
- 2. With the help of an assistant test-drive the vehicle, and watch the VSP signal.
Does the VSP signal change from [0] (stopped) to [1] (driving) as you drive?
YES
Replace the audio-navigation unit - Refer to: Audio-Navigation Unit Removal and Installation (With Display Audio) (2017) .
NO
Go to step 3.
- Determine possible failure area (VSP line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS.
- 3. Disconnect the following connector.
PCM connector A (50P) - 4. Turn the vehicle to the ON mode.
- 5. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode PCM connector A (50P): disconnected Test point 1 PCM connector A (51P) No. 35 - Refer to: PCM Connector for Inputs and Outputs (2017) Test point 2 Body ground Is there about 5.0 V?
YES
The VSP wire is OK. Go to step 4.
NO
Go to step 5.
- PCM check
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Reconnect PCM connector A (50P).
- 3. Raise the vehicle on a lift.
- 4. Turn the vehicle to the ON mode.
- 5. Block or hold one tire so that it cannot rotate, and slowly rotate the other front tire.
- 6. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode, with the front tire slowly rotating Test point 1 Audio-navigation unit connector C (24P) No. 14 - Refer to: Audio-Navigation Unit Connector for Inputs and Outputs (With Display Audio) (2017) Test point 2 Body ground Does the voltage pulse between 0 V and 5 V as you rotate the tire?
YES
Replace the audio-navigation unit - Refer to: Audio-Navigation Unit Removal and Installation (With Display Audio) (2017) .
NO
Substitute a known-good PCM, and recheck - Refer to: PCM Removal and Installation (2017) .
- Open wire check (VSP line)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode PCM connector A (50P): disconnected Test point 1 Audio-navigation unit connector C (24P) No. 14 - Refer to: Audio-Navigation Unit Connector for Inputs and Outputs (With Display Audio) (2017) Test point 2 Body ground Is there about 5.0 V?
YES
Repair an open in the wire between the audio-navigation unit and the PCM.
NO
The VSP wire is not open. Go to step 6.
- Shorted wire check (VSP line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Audio-navigation unit connector C (24P) NOTE: Eject the disc before disconnecting the audio-navigation unit to prevent damaging the DVD player load mechanism.
- 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode PCM connector A (50P): disconnected Audio-navigation unit connector C (24P): disconnected Test point 1 Audio-navigation unit connector C (24P) No. 14 - Refer to: Audio-Navigation Unit Connector for Inputs and Outputs (With Display Audio) (2017) Test point 2 Body ground Is there continuity?
YES
There is a short to body ground in the wire between the audio-navigation unit and the PCM.
NO
Replace the audio-navigation unit - Refer to: Audio-Navigation Unit Removal and Installation (With Display Audio) (2017) .