DTC: 1306
DTC 1306 : Vehicle Speed Pulse
NOTE:
- Check the vehicle 12 volt battery condition first - Refer to:
- This audio DTC sets when there is a problem with the VSP circuit.
- Check the GPS reception in an open area.
- Before You Troubleshoot, Make Sure To Follow The General Troubleshooting Information .
- 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 12 mph (20 km/h) 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.
- Determine possible failure area (audio unit, others)
-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 status.
Does the VSP change from [0] (stopped) to [1] (driving) as you drive?
YES
Replace the audio unit - Refer to:
Audio Unit Removal and Installation (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Removal and Installation (Color Audio Type [5-inch Screen]) .
NO
Go to step 3.
- Determine possible failure area (VSP OUT line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connector.
PCM connector A (51P) - 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 (51P): disconnected Test point 1 PCM connector A (51P) No. 49 - Refer to:
PCM Connector for Inputs and Outputs (6-Speed A/T) (2016 2017 2018 2019 2020) or
PCM Connector for Inputs and Outputs (9-Speed A/T) (2019 2020 2021) or
PCM Connector for Inputs and Outputs (9-Speed A/T) (2016 2017 2018)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 (51P).
- 3. Raise the vehicle on a lift.
- 4. Turn the vehicle to the ON mode.
- 5. Block the front tire of one side, and rotate the front tire slowly that is not blocked.
- 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 unit connector C (24P) No. 14 - Refer to:
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2016 2017) or
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2018) or
Audio Unit Connector for Inputs and Outputs (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground Does the voltage pulse between 0 V and 5 V as you rotate the tire?
YES
Replace the audio unit - Refer to:
Audio Unit Removal and Installation (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Removal and Installation (Color Audio Type [5-inch Screen]) .
NO
Substitute a known-good PCM - Refer to:
PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) or
PCM Removal and Installation , and recheck.
- Open wire check (VSP OUT line)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode PCM connector A (51P): disconnected Test point 1 Audio unit connector C (24P) No. 14 - Refer to:
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2016 2017) or
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2018) or
Audio Unit Connector for Inputs and Outputs (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground Is there about 5.0 V?
YES
Repair an open in the wire between the audio unit and the PCM.
NO
The VSP OUT wire is not open. Go to step 6.
- Shorted wire check (VSP OUT line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Audio unit connector C (24P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode PCM connector A (51P): disconnected Audio unit connector C (24P): disconnected Test point 1 Audio unit connector C (24P) No. 14 - Refer to:
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2016 2017) or
Audio Unit Connector for Inputs and Outputs (Color Audio Type [5-inch Screen]) (2018) or
Audio Unit Connector for Inputs and Outputs (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Connector for Inputs and Outputs (2019 2020 2021) .Test point 2 Body ground Is there continuity?
YES
Repair a short to body ground in the wire between the audio unit and the PCM.
NO
Replace the audio unit - Refer to:
Audio Unit Removal and Installation (Display Audio Type [8-inch Screen]) (2016 2017 2018) or
Audio Unit Removal and Installation (Color Audio Type [5-inch Screen]) .
DTC 1306 : Vehicle Speed Pulse
NOTE:
- Check the vehicle 12 volt battery condition first - Refer to:
- 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 GPS antenna can potentially interfere with the operation of the navigation system.
- Before You Troubleshoot, Make Sure To Follow The General Troubleshooting Information .
- Check any official Honda service website for more service information about the navigation system.
- 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 12 mph (20 km/h) 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.
- Determine possible failure area (audio-navigation unit, others)
-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 status.
Does the VSP change from [0] (stopped) to [1] (driving) as you drive?
YES
Replace The AUDIO-NAVIGATION Unit (2016 2017 2018) .
NO
Go to step 3.
- Determine possible failure area (VSP OUT line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS, and wait more than 1 minute.
- 3. Disconnect the following connector.
PCM connector A (51P) - 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 (51P): disconnected Test point 1 PCM connector A (51P) No. 49 - Refer to:
PCM Connector for Inputs and Outputs (6-Speed A/T) (2016 2017 2018 2019 2020) or
PCM Connector for Inputs and Outputs (9-Speed A/T) (2019 2020 2021) or
PCM Connector for Inputs and Outputs (9-Speed A/T) (2016 2017 2018) .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 (51P).
- 3. Raise the vehicle on a lift.
- 4. Turn the vehicle to the ON mode.
- 5. Block the front tire of one side, and rotate the front tire slowly that is not blocked.
- 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 (2017 2018) or
Audio-Navigation Unit Connector for Inputs and Outputs (2016) .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 (2016 2017 2018) .
NO
Substitute a known-good PCM - Refer to:
PCM Removal and Installation (9-Speed A/T) (2019 2020 2021) or
PCM Removal and Installation , and recheck.
- Open wire check (VSP OUT line)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode PCM connector A (51P): disconnected Test point 1 Audio-navigation unit connector C (24P) No. 14 - Refer to: 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 OUT wire is not open. Go to step 6.
- Shorted wire check (VSP OUT line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Audio-navigation unit connector C (24P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode PCM connector A (51P): 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 (2017 2018) or
Audio-Navigation Unit Connector for Inputs and Outputs (2016) .Test point 2 Body ground Is there continuity?
YES
Repair a short to body ground in the wire between the audio-navigation unit and the PCM.
NO