DTC : U0100, U0122, U0127, U0131, U0151 (Gauge Control Module: 6-Speed A/T Without CAN Gateway) (2019 2020)
DTC U0100 : Gauge Control Module Lost Communication with ENG/AT
DTC U0122 : Gauge Control Module Lost Communication with VSA Modulator-Control Unit
DTC U0127 : Gauge Control Module Lost Communication with TPMS Control Unit
DTC U0131 : Gauge Control Module Lost Communication with EPS Unit
DTC U0151 : Gauge Control Module Lost Communication with SRS Unit
NOTE:
- Before you troubleshoot, review the general troubleshooting information. Go to: How to Troubleshoot the Body Electrical .
- According to the detected DTC(s), check for the power circuit and the ground circuit of the control unit which cannot communicate with the gauge control module.
- Refer to the DTC shown on the display, then inspect the connectors and terminals based on the instructions.
| DTC Description | DTC |
|---|---|
| U0100 Gauge Control Module Lost Communication with ENG/AT | |
| U0122 Gauge Control Module Lost Communication with VSA Modulator-Control Unit | |
| U0127 Gauge Control Module Lost Communication with TPMS Control Unit | |
| U0131 Gauge Control Module Lost Communication with EPS Unit | |
| U0151 Gauge Control Module Lost Communication with SRS Unit |
DTC (Gauge Control Module)
- Problem verification
- 1. Clear the DTCs with the HDS.
Clear DTCs
- 2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
- 3. Wait for at least 6 seconds.
- 4. Check for DTCs with the HDS.
DTC Description DTC U0100 Gauge Control Module Lost Communication with ENG/AT U0122 Gauge Control Module Lost Communication with VSA Modulator-Control Unit U0127 Gauge Control Module Lost Communication with TPMS Control Unit U0131 Gauge Control Module Lost Communication with EPS Unit U0151 Gauge Control Module Lost Communication with SRS Unit Are any DTCs indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Open wire check (F-CAN_L, F-CAN_H lines)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. U0100: Jump the SCS line with the HDS, and wait more than 1 minute.
SCS short
U0151: Do the 12 Volt Battery Terminal Disconnection procedure, and wait for at least 3 minutes.
- 3. Disconnect the receiving control unit connector.
Gauge control module connector A (32P) - 4. Disconnect the transmitting control unit connectors.
(Refer to the DTC code shown on the display, and then disconnect the connector(s) based on the instructions in the table below.)
PCM connector A (51P) VSA Modulator-Control Unit 38P connector Keyless access/TPMS control unit connector C (20P) EPS control unit connector B (8P) SRS unit connector A (39P) - 5. Check for continuity between the receiving control unit and the transmitting control unit on the F-CAN_H circuit and the F-CAN_L circuit as specified in the table while in the vehicle OFF mode.
Is there continuity?
YES
The F-CAN A_H wire and the F-CAN A_L wire are OK.
According to the detected DTC on the following table replace the correspond control unit.
DTC Operation for Transmitting Control Unit U0100 PCM (6-Speed A/T) U0122 VSA Modulator-Control Unit U0127 Keyless access/TPMS control unit U0131 EPS control unit U0151
SRS Unit (2017 2018 2019)NO
Repair an open in the F-CAN_L or F-CAN_H wire.