Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di ax cip0500
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DI-167
DIAGNOSTICS - AUTOMATIC TRANSAXLE
DI6UP-01
CIRCUIT INSPECTION
DTC P0500 Vehicle Speed Sensor Malfunction
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 more precise rectangular wave form by the wave form shaping circuit
inside the combination meter, it is then transmitted to the ECM.
4-Pulse 4-Pulse
Vehicle
Speed Sensor
Combination Meter
ECM
Transaxle
D06036
DTC No. DTC Detecting Condition Trouble Area
No vehicle speed sensor signal to ECM under condition (1) S Combination meter
and (2); (2-trip detection logic) S Open or short in vehicle speed sensor circuit
P0500 1. Park/neutral position switch is OFF S Vehicle speed sensor
2. Vehicle is being driven S ECM
Clutch or brake slips or gear is broken S Automatic transaxle (clutch, brake or gear etc,)
WIRING DIAGRAM
ECM
Combination Meter
Instrument Panel J/B
19 6 3 9
V-W V-W
C14 1F 1H E4 SPD
D07932
2002 ECHO (RM884U)
Author : Date : 337
DI-168
DIAGNOSTICS - AUTOMATIC TRANSAXLE
INSPECTION PROCEDURE
1 Check operation of speedometer.
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 was warmed up or not, the air-fuel ratio was lean
or rich, etc. at the time of the malfunction.
CHECK:
Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.
HINT:
The vehicle speed sensor is operating normally if the speedometer display is normal.
NG Check speedometer (See page BE-2 ).
OK
2 Check for short in harness and connector between terminal SPD of ECM connec-
tor and body ground.
PREPARATION:
Disconnect the connector of the ECM.
CHECK:
Check continuity between terminal SPD of the ECM connector
SPD and body ground.
OK:
No continuity (1M or higher)
D08010 NG Repair or replace harness or connector.
OK
2002 ECHO (RM884U)
Author : Date : 338
DI-169
DIAGNOSTICS - AUTOMATIC TRANSAXLE
3 Check voltage between terminal SPD of ECM connector and body ground.
ON PREPARATION:
SPD
Turn ignition switch ON.
CHECK:
Measure voltage between terminal SPD of ECM connector and
body ground.
OK:
(-) (+) Voltage: 10 - 14 V
D05680 NG Check for open in harness and connector be-
tween instrument panel J/B and ECM
(See page IN-29 ).
OK
4 Check for open in harness and connector between instrument panel J/B and
combination meter (See page IN-29 ).
NG Repair or replace harness or connector.
5 Check ECM (See page IN-29 ).
NG Replace ECM.
OK
Check and repair transaxle (clutch, brake or
gear etc,).
2002 ECHO (RM884U)
Author : Date : 339
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