DTC U0155-00: CAN Communication Failure With METER
NOTE:
- Troubleshoot any PGM-FI DTCs first - Refer to: VSA System Description - ABS ControlVSA System Description - VSA ControlVSA System Description - System DiagramVSA System Description - VSA OFF MODEVSA System Description - TCS ControlVSA System Description - Engine Drag Torque ControlVSA System Description - Hill Start Assist ControlVSA System Description - Brake Assist ControlVSA System Description - Overview .
- Before you troubleshoot, review the general troubleshooting information .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| U0155-00 CAN Communication Failure With METER |
- 1. 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, then start the engine.
4. Wait 5 seconds or more.
5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame U0029-00 CAN Communication Failure (Bus OFF) U0155-00 CAN Communication Failure With METER Is DTC U0155-00 indicated?
YES
If only DTC U0155-00 is indicated, go to step 2.
YES
If DTC U0029-00 is also indicated, go to DTC U0029-00 .
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.
- 2. Open wire check (F-CAN_H, F-CAN_L lines):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.
VSA modulator-control unit 38P connector Gauge control module connector A (32P) 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 connector A (32P): disconnected Test circuit 1 Test point 1 VSA modulator-control unit 38P connector No. 38 Test point 2 Gauge control module connector A (32P) No. 19 Test circuit 2 Test point 1 VSA modulator-control unit 38P connector No. 26 Test point 2 Gauge control module connector A (32P) No. 20 Is there continuity?
YES
The F-CAN_H and F-CAN_L wires are OK. Go to step 3.
NO
Repair an open in the wire between the gauge control module and the VSA modulator-control unit.
- 3. 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 connector A (32P) 3. Turn the vehicle to the ON mode.
4. Clear the DTC with the HDS.
5. Turn the vehicle to the OFF (LOCK) mode, then start the engine.
6. Wait 5 seconds or more.
7. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame U0155-00 CAN Communication Failure With METER Is DTC U0155-00 indicated?
YES
Go to step 4.
NO
- 4. 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, then start the engine.
3. Wait 5 seconds or more.
4. Check for DTCs with the HDS.
Is DTC U0155-00 indicated?
YES
Check for loose terminals and poor connections 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 .
NO
Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.