Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1UR-FE ENGINE CONTROL
CHECK OPERATION OF SPEEDOMETER
READ VALUE USING GTS (VEHICLE SPEED)
CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM)
CHECK COMBINATION METER (+S VOLTAGE)
CHECK COMBINATION METER (SPD SIGNAL OUTPUT WAVEFORM))
CHECK FOR COMBINATION METER ASSEMBLY (SPD SIGNAL INPUT WAVEFORM)
CHECK HARNESS AND CONNECTOR (COMBINATION METER - SKID CONTROL ECU)
DTC P0500 Vehicle Speed Sensor "A"
DESCRIPTION
The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU converts these wheel speed signals into a pulse signal and outputs it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of this pulse signal.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0500 | While the vehicle is being driven, no vehicle speed signal is transmitted to the ECM (2 trip detection logic). | Open or short in speed signal circuit Wheel speed sensor Combination meter assembly ECM Skid control ECU |
MONITOR DESCRIPTION
The ECM assumes that the vehicle is being driven when the vehicle speed measured by the output speed sensor (SP2) is more than 9 km/h (5.6 mph). If there is no speed signal from the combination meter despite this condition being met, the ECM interprets this as a malfunction in the speed signal circuit. The ECM then illuminates the MIL and stores the DTC.
CONFIRMATION DRIVING PATTERN
- CAUTION:
- When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- HINT:
| Tester Display | Description |
| NORMAL | DTC judgment completed System normal |
| ABNORMAL | DTC judgment completed System abnormal |
| INCOMPLETE | DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions |
| N/A | Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit |
- HINT:
WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
| 1.CHECK OPERATION OF SPEEDOMETER |
Drive the vehicle and check whether the operation of the speedometer in the combination meter is normal.
- HINT:
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| OK | |
| 2.READ VALUE USING GTS (VEHICLE SPEED) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List / Vehicle Speed.
Drive the vehicle.
Read the value displayed on the GTS.
- OK:
- Vehicle speeds displayed on GTS and speedometer display are equal.
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| OK | ||
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| 3.CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) |
Disconnect the ECM connector.
Disconnect the combination meter connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for RHD Tester Connection Condition Specified Condition E7-4 (+S) - A52-13 (SPD) Always Below 1 Ω E7-4 (+S) or A52-13 (SPD) - Body ground Always 10 kΩ or higher for LHD Tester Connection Condition Specified Condition E7-4 (+S) - A38-13 (SPD) Always Below 1 Ω E7-4 (+S) or A38-13 (SPD) - Body ground Always 10 kΩ or higher
Reconnect the ECM connector.
Reconnect the combination meter connector.
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| OK | |
| 4.CHECK COMBINATION METER (+S VOLTAGE) |
Disconnect the combination meter connector.
- HINT:
- Disconnect the ECU connectors on the other systems related to the speed signal (but the ECM connectors must be connected).
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection Switch Condition Specified Condition E7-4 (+S) - Body ground Engine switch on (IG) 4.5 to 5.5 V
| *a | Front view of wire harness connector (to Combination Meter) |
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| OK | |
| 5.CHECK COMBINATION METER (SPD SIGNAL OUTPUT WAVEFORM)) |
Disconnect the combination meter connector.
Move the shift lever to the neutral position.
Move the shift lever to the neutral position.
Jack up one of the rear wheels.
Turn the engine switch on (IG).
Check the voltage between the terminal of the combination meter and the body ground while the rear wheel is turned slowly.
| Tester Connection | Condition | Specified Condition |
| E7-4 (+S) - Body ground | Engine switch on (IG) Wheel turned slowly | Voltage generated intermittently |
| *a | Rear view of wire harness connector (to Combination Meter) |
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| OK | ||
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| 6.CHECK FOR COMBINATION METER ASSEMBLY (SPD SIGNAL INPUT WAVEFORM) |
Disconnect the combination meter connector.
Move the shift lever to the neutral position.
Move the shift lever to the neutral position.
Jack up one of the rear wheels.
Turn the engine switch on (IG).
Check the voltage between the terminal of the combination meter and the body ground while the rear wheel is turned slowly.
| Tester Connection | Condition | Specified Condition |
| E7-3 (SI) - Body ground | Engine switch on (IG) Wheel turned slowly | Voltage generated intermittently |
| *a | Rear view of wire harness connector (to Combination Meter) |
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| OK | ||
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| 7.CHECK HARNESS AND CONNECTOR (COMBINATION METER - SKID CONTROL ECU) |
Disconnect the combination meter connector.
Disconnect the skid control ECU connector.
Measure the resistance according the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E7-3 (SI) - A24-12 (SP1) Always Below 1 Ω E7-3 (SI) or A24-12 (SP1) - Body ground Always 10 kΩ or higher
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| OK | ||
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