Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

1Gr-Fe Engine Control System

Title:

Sfi System

  1. Description

  2. Monitor description

  3. Monitor strategy

  4. Typical enabling conditions

  5. Typical malfunction thresholds

  6. Wiring diagram

  7. Inspection procedure

  8. Check operation of speedometer

  9. Inspect ecm (spd voltage)

DTC P0500 Vehicle Speed Sensor "A"


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DESCRIPTION

Vehicles, which are equipped with ABS (Anti-lock Brake System), detect the vehicle speed using the skid control ECU and wheel speed sensor. The wheel speed sensor monitors the wheel rotation speed and sends a signal to the skid control ECU. The skid control ECU converts the wheel speed signal into a 4-pulse signal and transmits it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of the pulse signal.

No SP1 (speed sensor) signal while ECM detects SP2 (No. 2 speed sensor) signal 4Runner


DTC No.
DTC Detection Conditions
Trouble Areas
P0500
The ECM detects following conditions simultaneously 500 times (2 trip detection logic)
  1. No SP1 (speed sensor) signal while ECM detects SP2 (No. 2 speed sensor) signal
  2. Vehicle speed is 6 mph (9 km/h) or more for 4 seconds
  3. Park/Neutral position switch is OFF (shift lever other than P and N positions)
  4. Transfer lever is in other than N position (4WD)
  1. Open or short in speed signal circuit
  2. Combination meter
  3. ECM
  4. Skid control ECU

MONITOR DESCRIPTION

The ECM assumes that the vehicle is being driven, the vehicle speed sensor signal is being transmitted by the combination meter. If there is no signal from combination meter, despite the ECM detects the speed signal from speed sensor No. 2, the ECM interprets this as a malfunction in the speed signal circuit. The ECM then illuminates the MIL and sets the DTC.

MONITOR STRATEGY


Related DTCs
P0500: Vehicle speed sensor "A" pulse input error
Required Sensors / Components (Main)
Vehicle Speed Sensor
Required Sensors / Components (Related)
Park/neutral Position switch, Engine Coolant Temperature sensor, Combination meter
Frequency of Operation
Continuous
Duration
2 seconds
MIL Operation
Immediate
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


The monitor will run whenever these DTCs are not present
-
Vehicle speed is 5.59 mph (9 km/h) or more
4 seconds or more
Park/neutral position switch
OFF
Ignition switch
ON

TYPICAL MALFUNCTION THRESHOLDS


Sensor signal
No input

WIRING DIAGRAM


Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.OK:Actual vehicle speed and the speed indicated on the speedometer are the same.HINT: The vehicle speed sensor is operating normally if the speedometer reading is normal. 4Runner


INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
1.CHECK OPERATION OF SPEEDOMETER

  1. Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.

    OK:
    Actual vehicle speed and the speed indicated on the speedometer are the same.
    HINT:
    The vehicle speed sensor is operating normally if the speedometer reading is normal.


NGnext
CHECK SPEEDOMETER CIRCUIT
OK
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2.INSPECT ECM (SPD VOLTAGE)
  1. Shift the shift lever to the neutral position. 4Runner

  2. Shift the shift lever to the neutral position.

  1. Jack up the vehicle.

  1. Turn the ignition switch on.

  1. Check the voltage between the terminals of the E6 and E7 ECM connectors as the wheel is turned slowly.

    OK:
    Tester Connections
    		Specified Conditions
    SPD (E7-8) - E1 (E6-1)
    		Voltage generated intermittently
    HINT:
    The output voltage should fluctuate up and down similarly to the diagram on the left when the wheel is turned slowly.


NGnext
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
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REPLACE ECM