DTC U0100-00 (41-01), U0122-00 (41-02), U0131-00 (41-09), U0151-00 (41-08) (AWD (Without CAN Gateway))
DTC U0100-00 : F-CAN Malfunction (Lost Communication with Powertrain Control Module (PCM))DTC U0101-00 : F-CAN Malfunction (Lost Communication with AT Control System)DTC U0122-00 : F-CAN Malfunction (Lost Communication with VSA Modulator-Control Unit)DTC U0131-00 : F-CAN Malfunction (Lost Communication with EPS System)DTC U0151-00 : F-CAN Malfunction (Lost Communication with SRS unit)
NOTE: Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| U0100-00 F-CAN Malfunction (Lost Communication with Powertrain Control Module (PCM)) | ||
| U0101-00 F-CAN Malfunction (Lost Communication with A/T Control System) | ||
| U0122-00 F-CAN Malfunction (Lost Communication with VSA Modulator-Control Unit) | ||
| U0131-00 F-CAN Malfunction (Lost Communication with EPS control unit) | ||
| U0151-00 F-CAN Malfunction (Lost Communication with SRS unit) |
- Problem verification (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.
-5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame U0100-00 F-CAN Malfunction (Lost Communication with Powertrain Control Module (PCM)) U0101-00 F-CAN Malfunction (Lost Communication with A/T Control System) U0122-00 F-CAN Malfunction (Lost Communication with VSA Modulator-Control Unit) U0131-00 F-CAN Malfunction (Lost Communication with EPS control unit) U0151-00 F-CAN Malfunction (Lost Communication with SRS unit) Is DTC U0100-00, U0101-00, U0122-00, U0131-00 or U0151-00 indicated?
DTC U0100-00 or U0101-00 is indicated
The failure is duplicated. Go to step 2.
DTC U0122-00 is indicate
The failure is duplicated. Go to step 3.
DTC U0131-00 is indicated
The failure is duplicated. Go to step 4.
DTC U0151-00 is indicated
The failure is duplicated. Go to step 4.
DTC is not indicated
Intermittent failure, the system is OK at this time. 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 H, F-CAN L lines)1
-1. Turn the vehicle to the OFF (LOCK) mode, and wait 2 minutes.
-2. Jump the SCS line with the HDS, and wait more than 1 minute.
-3. Disconnect the following connectors.
AWD control unit 24P connector PCM connector A 51P connector -4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode AWD control unit 24P connector: disconnected PCM connector A: disconnected Test point 1 AWD control unit 24P connector No. 14 Test point 2 PCM connector A (51P) No. 2 Test point 1 AWD control unit 24P connector No. 24 Test point 2 PCM connector A (51P) No. 1 Is there continuity?
YES
Substitute a known-good PCM and recheck. If the symptom/indication goes away with the PCM, troubleshooting is complete. If the symptom/indication goes away with a known-good PCM, replace the original PCM .
NO
Repair an open in the F-CAN H and/or F-CAN L wires between the AWD control unit and the PCM.
- Open wire check (F-CAN H, F-CAN L lines)2
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
AWD control unit 24P connector VSA modulator-control unit 46P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode AWD control unit 24P connector: disconnected VSA modulator-control unit 46P connector: disconnected Test point 1 AWD control unit 24P connector No. 14 Test point 2 VSA modulator-control unit 46P connector No. 40 Test point 1 AWD control unit 24P connector No. 24 Test point 2 VSA modulator-control unit 46P connector No. 28 Is there continuity?
YES
Update the VSA modulator-control unit if it does not have the latest software , and recheck. If the symptom/indication goes away with the updated VSA modulator-control unit, troubleshooting is complete. If the symptom/indication does not goes away with the updated the VSA modulator-control unit, replace the VSA modulator-control unit .
NO
Repair an open in the F-CAN H and/or F-CAN L wires between the AWD control unit and the VSA modulator-control unit.
- Open wire check (F-CAN H, F-CAN L lines)3
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
AWD control unit 24P connector EPS control unit B 6P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode AWD control unit 24P connector: disconnected EPS control unit B 6P connector Test point 1 AWD control unit 24P connector No. 14 Test point 2 EPS control unit B 6P connector No. 3 Test point 1 AWD control unit 24P connector No. 24 Test point 2 EPS control unit B 6P connector No. 1 Is there continuity?
YES
Replace the EPS control unit .
NO
Repair an open in the F-CAN H and/or F-CAN L wires between the AWD control unit and the EPS control unit.
- Open wire check (F-CAN H, F-CAN L lines)4
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
AWD control unit 24P connector SRS unit A 39P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode AWD control unit 24P connector: disconnected SRS unit A 39P connector Test point 1 AWD control unit 24P connector No. 14 Test point 2 SRS unit A 39P connector No. A34 Test point 1 AWD control unit 24P connector No. 24 Test point 2 SRS unit A 39P connector No. A35 Is there continuity?
YES
NO
Repair an open in the F-CAN H and/or F-CAN L wires between the AWD control unit and the SRS unit.