P0500
P0500 VSS
A/T MODELS : Description
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.
A/T MODELS : DTC Logic
DTC DETECTION LOGIC
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 EC379, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1. PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.
- 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 "A/T MODELS : Diagnosis Procedure"
NO- INSPECTION END
A/T MODELS : Diagnosis Procedure
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to "CONSULT Function" 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 "CONSULT Function" Scan Tool Testing and Procedures.
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 "CONSULT Function (METER/M&A)" CONSULT Function.
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 "DTC Logic" 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 "FRONT WHEEL SENSOR : Removal and Installation" Removal and Installation (FRONT
WHEEL SENSOR) or "REAR WHEEL SENSOR : Removal and Installation" Removal and Installation (REAR WHEEL SENSOR).
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace or replace error-detected parts.
M/T MODELS : Description
The vehicle speed signal is sent to the "unified meter and A/C amp." from the "ABS actuator and electric unit (control unit)" via the CAN communication line. The "unified meter and A/C amp." then sends a signal to the
ECM via the CAN communication line.
M/T MODELS : DTC Logic
DTC DETECTION LOGIC
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 "DTC Logic" P0607.
DTC CONFIRMATION PROCEDURE
1. INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES- GO TO 2.
NO- GO TO 5.
2. PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
- GO TO 3.
3. CHECK VEHICLE SPEED SIGNAL
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.
With CONSULT
1.Start engine (VDC switch OFF).
2.Read "VHCL SPEED SE" in "DATA MONITOR" mode with CONSULT. The vehicle speed on CONSULT should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
Is the inspection result normal?
YES- GO TO 4.
NO- Go to "M/T MODELS : Diagnosis Procedure" .
4. PERFORM DTC CONFIRMATION PROCEDURE
1.Select "DATA MONITOR" mode with CONSULT.
2.Warm engine up to normal operating temperature.
3.Maintain the following conditions for at least 50 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
4.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Go to "M/T MODELS : Diagnosis Procedure" .
NO- INSPECTION END
5. PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to "M/T MODELS : Component Function Check" .
Use component function check to check the overall function of the vehicle speed signal circuit. During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES- INSPECTION END
NO- Go to "M/T MODELS : Diagnosis Procedure" .
M/T MODELS : Component Function Check
1. PERFORM COMPONENT FUNCTION CHECK
With GST
1.Lift up drive wheels.
2.Start engine.
3.Read vehicle speed signal in Service $01 with GST.
The vehicle speed signal on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
Is the inspection result normal?
YES- INSPECTION END
NO- Go to "M/T MODELS : Diagnosis Procedure" .
M/T MODELS : Diagnosis Procedure
1. CHECK DTC WITH "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)"
Refer to "CONSULT Function" Scan Tool Testing and Procedures.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace.
2. CHECK DTC WITH "UNIFIED METER AND A/C AMP."
Refer to "CONSULT Function (METER/M&A)" CONSULT Function.
- INSPECTION END