DTC 23-02: CAN Vehicle Speed Data

NOTE:

Before you troubleshoot, review the general troubleshooting information .
VSA DTCs may set during this troubleshooting. If so, clear them.

DTC Description	DTC	Freeze Frame
23-02 CAN Vehicle Speed Data

1. Problem verification:

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. Raise and support the vehicle, and allow all wheels to rotate freely.

5. Start the engine.

6. Turn off the VSA function by using the VSA OFF switch.

7. Run the vehicle while in the D position.

8. Wait 60 seconds or more.

9. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
23-02 CAN Vehicle Speed Data

Is DTC 23-02 indicated?

YES

The failure is duplicated. Go to step 2.

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.

2. Open wire check (F-CAN_H, F-CAN_L lines):

1. Turn the vehicle to the OFF (LOCK) mode.

2. Jump the SCS line with the HDS, and wait more than 1 minute.

3. Disconnect the following connectors.

EPS control unit connector A (11P)

PCM connector A (51P)

4. Check for continuity between test points 1 and 2 individually.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector A (11P): disconnected
	PCM connector A (51P): disconnected

Test point 1	EPS control unit connector A (11P) No. 7
Test point 2	PCM connector A (51P) No. 2

Test point 1	EPS control unit connector A (11P) No. 9
Test point 2	PCM connector A (51P) No. 1

Is there continuity?

YES

The F-CAN_H and F-CAN_L wires are OK. Go to step 3.

Repair an open in the wire between the EPS control unit and the PCM.

3. EPS system check:

1. Reconnect the following connectors.

EPS control unit connector A (11P)

PCM connector A (51P)

2. Raise and support the vehicle , and allow all wheels to rotate freely.

3. Start the engine.

4. Turn off the VSA function by using the VSA OFF switch.

5. Run the vehicle while in the D position.

6. Check the parameter(s) below with the HDS.

Signal	Current conditions
Signal	Values	Unit
VEHICLE SPEED

Is the vehicle speed indicated?

YES

Go to step 5.

Go to step 4.

4. PCM check (update or substitution):

1. Update the PCM if it does not have the latest software, or substitute a known-good PCM .

2. Clear the DTC with the HDS.

3. Raise and support the vehicle , and allow all wheels to rotate freely.

4. Start the engine.

5. Turn off the VSA function by using the VSA OFF switch.

6. Run the vehicle while in the D position.

7. Wait 60 seconds or more.

8. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
23-02 CAN Vehicle Speed Data

Is DTC 23-02 indicated?

YES

Go to step 5.

If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM .

5. EPS control unit check (update):

1. Turn the vehicle to the OFF (LOCK) mode.

2. Update the EPS control unit if it does not have the latest software.

3. Clear the DTC with the HDS.

4. Raise and support the vehicle , and allow all wheels to rotate freely.

5. Start the engine.

6. Turn off the VSA function by using the VSA OFF switch.

7. Run the vehicle while in the D position.

8. Wait 60 seconds or more.

9. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
23-02 CAN Vehicle Speed Data

Is DTC 23-02 indicated?

YES

Replace the EPS control unit .

Troubleshooting is complete.