Inspection Procedure
- CHECK OPERATION OF SPEEDOMETER
- Drive the vehicle and check if the function of the speedometer on the combination meter is normal.
OK: Actual vehicle speed and the speed indicated on the speedometer are the same.
HINT:
- The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, refer to "ON-VEHICLE INSPECTION " in the meter/gauge system (See DIAGNOSTIC TROUBLE CODE CHART ).
- The vehicle speed sensor is functioning normally when the indication on the speedometer is normal.
NG: Go TO COMBINATION METER
OK: Go to Next Step
- Drive the vehicle and check if the function of the speedometer on the combination meter is normal.
- INSPECT RADIO RECEIVER
- Disconnect the radio receiver connector R2 (*1), R16 (*2).
- Measure the voltage.
- Jack up either one of the drive wheels.
- Move the shift lever to the neutral position.
- Turn the ignition switch to the ON position.
- Measure the voltage between terminal SPD of the wire harness connector and body ground when the drive wheels are turned slowly.
OK: Voltage pulses as shown in the illustration.
*1: for Built-in Type Amplifier System
*2: for Separate Type Amplifier System
OK: REPLACE RADIO RECEIVER
NG: Go to Next Step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER)
- Disconnect the radio receiver connector R2 (*1), R16 (*2) and combination meter connector C7.
- Measure the resistance according to the value (s) in the table below.
Standard resistance
STANDARD RESISTANCE SPECIFICATIONTester connection Condition Specified condition SPD - C7-36 Ignition switch off Below 1 Ω *1: for Built-in Type Amplifier System
*2: for Separate Type Amplifier System
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to Next Step
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BODY GROUND)
- Measure the resistance according to the value (s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard resistance
STANDARD RESISTANCE SPECIFICATIONTester connection Condition Specified condition SPD - Body ground Ignition switch off 10 kΩ or higher HINT:
If the resistance between terminal SPD and body ground is less than 10 kΩ, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU
OK: REPLACE COMBINATION METER
- Measure the resistance according to the value (s) in the table below.