The No.1 vehicle speed sensor outputs a 4-pulse signal for every revolution of ... â¢Open or short in vehicle speed sensor circuit ... INSPECTION PROCEDURE.
CIRCUIT DESCRIPTION The No.1 vehicle speed sensor outputs a 4-pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pluse signals.
4-Pulse
4-Pulse
No.1 Vehicle Speed Sensor Combination Meter ECM
Transaxle Vehicle Speed Sensor A00414
DTC No.
DTC Detecting Condition
P0500
During vehicle is being driven, no vehicle speed sensor signal to ECM (2 trip detection logic)
Trouble Area Combination meter Open or short in vehicle speed sensor circuit Vehicle speed sensor ECM
WIRING DIAGRAM ECM Combination Meter 19 C14
V-W
Instrument Panel J/B 3 6 1F 1H
V-W
9 E4 SPD
A09122
2002 ECHO (RM884U)
Author:
Date:
273
DI-104 DIAGNOSTICS
-
ENGINE
INSPECTION PROCEDURE HINT: Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.
1
Check operation of speedometer.
CHECK: Drive the vehicle and check if the operation of the speedmeter in the combination meter is normal. HINT: The vehicle speed sensor is operating normally if the speedometer display is normal. NG
Check speedometer circuit. See combination meter troubleshooting. (See page BE-2 ).
OK
2002 ECHO (RM884U)
Author:
Date:
274
DI-105 DIAGNOSTICS
2
-
ENGINE
Check voltage between terminal SPD of ECM connector and body ground. ON
SPD
(-)
(+) A09041
PREPARATION: (a) Remove the connector cover from the ECM. (b) Shift the shift lever to neutral. (c) Jack up one of the front wheels. (d) Turn the ignition switch ON. CHECK: Measure voltage between terminal SPD of ECM connector and body ground when the wheel is turned slowly. OK: Voltage is generated intermittently.
4.5 ∼ 5.5 V
0
Turn the wheel
NG
AT7809
Check and repair harness and connector between combination meter and ECM.
CIRCUIT DESCRIPTION. The vehicle speed sensor outputs a 4-pulse signal for every revolution of the transaxle output shaft. After this signal is converted into a ...
The rotary solenoid type IAC valve is located on the throttle body and intake air bypassing the throttle valve is directed to the IAC valve through a passage.
The knock sensor is fitted to the cylinder block to detect engine knocking. This sensor contains a piezoelec- tric element which generates a voltage when it ...
Shift solenoid valve ST is switched ON-OFF by a signal from ECM so that let in or out timing of 2nd brake is adjusted by operating orifice control valve. Therefore ...
Voltage output of the heated oxygen sensor remains at 0.40 V or more, or 0.50 V or less when the vehicle is driven at 40 km/h. (25 mph) or more after the engine ...
Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because ... During cranking or idling, check between terminals G2 and. NE-, NE ...
Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because ... CHECK: Measure voltage between terminals IGF of the ECM connector.
ECM memory to detect mechanical trouble of the shift solenoid valve SL, valve body and torque converter clutch or automatic transaxle (clutch, brake or gear etc.) ...
2. 1. R-W. R-B. ECM. OCV+. OCV-. 10. 23. E7. E7. DI-122. -. DIAGNOSTICS. ENGINE ... (b) Connect the TOYOTA hand-held tester and select VVT from ACTIVE TEST menu. CHECK: ... Replace oil control valve, and then go to step 6. OK. 6.
REMOVE DIRECT CLUTCH SPEED SENSOR. (a) Disconnect the connector. (b) Remove the bolt and direct clutch speed sensor. (c) Remove the O-ring from the ...
CIRCUIT DESCRIPTION. The SRS is equipped with a voltage-increase circuit (DC-DC converter) in the airbag sensor assembly in case the source voltage ...
When a malfunction code other than code B1100/31 is displayed at the same time, first repair the malfunction indicated by the malfunction code other than code ...Missing:
This signal is used to detect when the brakes have been applied. The STP signal voltage is the same as the voltage supplied to the stop lights. The STP signal is ...
plied to the intake air temp. sensor from the terminal THA via ... After confirming DTC P0110, use the OBD II scan tool or TOYOTA hand-held tester to confirm the ...
CIRCUIT DESCRIPTION. The door side airbag sensor (RH) circuit consists of the airbag sensor assembly and door side airbag sensor. (RH). For details of the ...
