P0500
P0500 VSS
Description
NOTE:
- If DTC P0500 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
- If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to [SDT Function (AT)] P0607.
ECM receives vehicle speed signals from two different paths via CAN communication line: One is from the ABS actuator and electric unit (control unit) via the combination unit and the other is from TCM.
On Board Diagnosis Logic
Fail-Safe Mode
When the malfunction is detected, ECM enters fail-safe mode.
DTC Confirmation Procedure
1. PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
GO TO 2.
2. PERFORM DTC CONFIRMATION PROCEDURE
1 Start engine.
2 Shift the selector lever to D range and wait at least for 2 seconds.
3 Drive the vehicle at least 5 seconds at 20 km/h (13 MPH) or more.
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
4 Check 1st trip DTC.
Is 1st trip DTC detected?
YES
Proceed to "Diagnosis Procedure".
NO
INSPECTION END.
Diagnosis Procedure
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to Scan Tool Testing and Procedures.
Is the inspection result normal?
YES
GO TO 2.
NO
Perform trouble shooting relevant to DTC indicated.
2. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Check DTC with ABS actuator and electric unit (control unit). Refer to [SDT Function (ABS / ESP(R))] SDT Function (ABS / ESP) (TYPE 1) or [SDT Function (ABS / ESP(R))] SDT Function (ABS / ESP) (TYPE 2).
Is the inspection result normal?
YES
GO TO 3.
NO
Perform trouble shooting relevant to DTC indicated.
3. CHECK DTC WITH COMBINATION METER
Check DTC with combination meter. Refer to [SDT Function (METER/M&A)] SDT Function (Meter/M&A).
Is the inspection result normal?
YES
GO TO 4.
NO
Perform trouble shooting relevant to DTC indicated.
4. CHECK OUTPUT SPEED SENSOR
Check output speed sensor. Refer to [P0720 Output Speed Sensor] P0720.
Is the inspection result normal?
YES
GO TO 5.
NO
Replace or replace error-detected parts.
5. CHECK WHEEL SENSOR
Check wheel sensor. Refer to [C1115 Wheel Sensor] C1115.
Is the inspection result normal?
YES
Check intermittent incident. Refer to [Service Information for Electrical Incident: Intermittent Incident] Service Information for Electrical Incident: Intermittent Incident.
NO
Replace or replace error-detected parts.
Description
The vehicle speed signal is sent to the combination meter from the "ABS actuator and electric unit (control unit)" by CAN communication line. The combination meter then sends a signal to the ECM by CAN communication line.
On Board Diagnosis Logic
NOTE:
- If DTC P0500 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to [SDT Function (ABS / ESP(R))] U1001.
- If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to P0607.
Fail-Safe Mode
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation Procedure
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
TESTING CONDITION:
Steps 1 and 2 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
with SDT
1) Start engine.
2) Read "VHCL SPEED SE" in "Data list" mode with SDT. The vehicle speed on SDT should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
If NG, go to "Diagnosis Procedure".
If OK, go to following step.
3) Select "Data list" mode with SDT.
4) Warm engine up to normal operating temperature.
5) Maintain the following conditions for at least 60 consecutive seconds.
6) Check 1st trip DTC.
7) If 1st trip DTC is detected, go to "Diagnosis Procedure".
Overall Function Check
Use this procedure to check the overall function of the vehicle speed sensor circuit. During this check, a 1st trip DTC might not be confirmed.
with GST
1) Lift up drive wheels.
2) Start engine.
3) Read vehicle speed sensor signal in Service $01 with GST.
The vehicle speed sensor on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
4) If NG, go to "Diagnosis Procedure".
Diagnosis Procedure
1. CHECK DTC WITH "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)"
Refer to SDT Function (ABS / ESP) (TYPE 1) or [SDT Function (ABS / ESP(R))] SDT Function (ABS / ESP) (TYPE 2).
OK or NG
OK
GO TO 2.
NG
Repair or replace.
2. CHECK COMBINATION METER
Refer to [Diagnosis and Repair Workflow: Meter, Warning Lamp and Indicator] Diagnosis and Repair Workflow Meter, Warning Lamp and Indicator.
INSPECTION END