Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC 86-14: F-CAN Communication With Gauge Control Module Malfunction (Without ACC) (2015-17)
NOTE:
- Troubleshoot any PGM-FI DTCs first.
- Before you troubleshoot, review the general troubleshooting information .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| 86-14 F-CAN Communication With Gauge Control Module Malfunction |
DTCs (VSA)
- DTC check
-1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode.
- 4. Start the engine, and let it idle for at least 5 seconds.
- 5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 86-11 F-CAN Bus-Off Malfunction 86-14 F-CAN Communication With Gauge Control Module Malfunction Is DTC 86-14 indicated?
YES
If only DTC 86-14 is indicated, go to step 2.
YES
If DTC 86-11 is also indicated, go to DTC 86-11 - Refer to: VSA DTC Troubleshooting: 86-11, 86-51 (With ACC), or VSA DTC Troubleshooting: 86-11, 86-51 (Without ACC) .
NO
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.
- Open wire check (F-CAN_L, F-CAN_H lines) (L4 engine) or (F-CAN A_L, F-CAN A_H lines) (V6 engine)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connectors.
VSA modulator-control unit 38P connector Gauge control module 32P connector - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 38P connector: disconnected Gauge control module 32P connector: disconnected Test point 1 VSA modulator-control unit 38P connector No. 26 - Refer to: VSA Modulator-Control Unit Connector For Inputs And Outputs (With Auto Idle Stop System) (2015-17) or VSA Modulator-Control Unit Connector For Inputs And Outputs (Without Auto Idle Stop System) (2015-17) or VSA Modulator-Control Unit Connector for Inputs and Outputs (2018-19) Test point 2 Gauge control module 32P connector No. 28 - Refer to: Gauge Control Module Connector For Inputs And Outputs (Without SH-AWD) (2015-17) or Gauge Control Module Connector For Inputs And Outputs (With SH-AWD) (2015-17) or Gauge Control Module Connector for Inputs and Outputs (2018-19) Test point 1 VSA modulator-control unit 38P connector No. 38 - Refer to: VSA Modulator-Control Unit Connector For Inputs And Outputs (With Auto Idle Stop System) (2015-17) or VSA Modulator-Control Unit Connector For Inputs And Outputs (Without Auto Idle Stop System) (2015-17) or VSA Modulator-Control Unit Connector for Inputs and Outputs (2018-19) Test point 2 Gauge control module 32P connector No. 27 - Refer to: Gauge Control Module Connector For Inputs And Outputs (Without SH-AWD) (2015-17) or Gauge Control Module Connector For Inputs And Outputs (With SH-AWD) (2015-17) or Gauge Control Module Connector for Inputs and Outputs (2018-19) Is there continuity?
YES
The F-CAN_L and F-CAN_H wires (L4 engine) or F-CAN A_L and F-CAN A_H wires (V6 engine) are OK. Go to step 3.
NO
Repair an open in the wire between the gauge control module and the VSA modulator unit.
- Gauge control module check (substitution)
-1. Substitute a known-good gauge control module.
- 2. Reconnect the following connectors.
VSA modulator-control unit 38P connector Gauge control module 32P connector - 3. Turn the vehicle to the ON mode.
- 4. Clear the DTC with the HDS.
- 5. Turn the vehicle to the OFF (LOCK) mode.
- 6. Start the engine, and let it idle for at least 5 seconds.
- 7. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 86-14 F-CAN Communication With Gauge Control Module Malfunction Is DTC 86-14 indicated?
YES
Go to step 4.
NO
- VSA modulator-control unit check (update)
-1. Update the VSA modulator-control unit if it does not have the latest software.
- 2. Turn the vehicle to the OFF (LOCK) mode.
- 3. Start the engine, and let it idle for at least 5 seconds.
- 4. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame Is DTC 86-14 indicated?
YES
Check for loose terminals in the VSA modulator-control unit 38P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit - Refer to: VSA Modulator-Control Unit Removal and Installation (With SH-AWD), or VSA Modulator-Control Unit Removal and Installation (Without SH-AWD) .
NO
Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.