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 U0114: F-CAN Malfunction (PCM-SH-AWD Control Unit)
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- If DTC U0028 is stored at the same time as DTC U0114, troubleshoot DTC U0028 first, then recheck for DTC U0114.
- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.
Is DTC U0114 indicated?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the gauge control module, the SH-AWD control unit, and the PCM.
- Check for DTCs in the DTCs MENU with the HDS.
Is SH-AWD system DTC 41 indicated?
YES - Go to step 5.
NO - Go to step 8.
- Turn the ignition switch OFF.
- Disconnect the SH-AWD control unit 20P connector.
- Check for continuity between SH-AWD control unit 20P connector terminals No. 10 and No. 20*.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Substitute a known-good SH-AWD control unit (see SH-AWD CONTROL UNIT REPLACEMENT ), then go to step 15 and recheck. If DTC U0114 is not indicated, replace the original SH-AWD control unit (see SH-AWD CONTROL UNIT REPLACEMENT ), then go to step 15.
NO - Repair open in the wire between the SH-AWD control unit (No. 10 (No. 20)*) and the PCM (A48 (A49)*), then go to step 15.
*: CANL line
- Check for a poor connections at the SH-AWD control unit 20P connector and 8P connector.
Are the connections OK?
YES - Go to step 9.
NO - Repair the connections, then go to step 15.
- Turn the ignition switch OFF.
- Disconnect the SH-AWD control unit 20P connector.
- Turn the ignition switch ON (II).
- Measure voltage between SH-AWD control unit 20P connector terminal No. 7 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES - Go to step 13.
NO - Check the No. 20 SVTM-4, ARC, ODS (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the No. 20 STVM-4, ARC, ODS (7.5 A) fuse and the SH-AWD control unit, then go to step 15.
- Turn the ignition switch OFF.
- Check for continuity between SH-AWD control unit 20P connector terminals No. 9 and body ground, and between SH-AWD control unit 8P connector terminal No. 2 and No. 3 and body ground individually.
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.