OBD0340
AG: DTC P0500
—VEHICLE SPEED SENSOR MALFUNCTION
(VSP)—
DESCRIPTION:
The speedometer system is an electric type; it uses no
speedometer cable and drives the speedometer according
to electric pick-up sensor (vehicle speed sensor 2).
The speed sensor 2 is installed on the transmission. The
speed sensor 2 sends the vehicle speed signal (8 pulses
per one turn of speed sensor driven shaft) to the speed
detection circuit in the speedometer where this signal pulse
wave is regulated.
The regulated pulse signal (4 pulses per one turn of speed
sensor driven shaft) is sent to the speedometer drive cir-
cuit and odometer (trip meter) drive circuit.
The output signal from vehicle speed detection circuit is
also used in ECM, TCM, etc.
B6H0022A
B6H0021A
The speed sensor 2 consists of a magnetic resistance
element, magnet ring, driven shaft, spring, etc.
As the driven key rotates, the magnet turns to change the
magnetic field of the coil.
The coil generates power corresponding to a change in the
magnetic field.
One turn of the driven key in the vehicle speed sensor 2
sends 8 pulses of AC signal to the combination meter.
DTC DETECTING CONDITION:
Immediately at fault recognition
253
2-7ON-BOARD DIAGNOSTICS II SYSTEM
11. Diagnostics Chart with Trouble Code
How to use this manual
This Service Manual is divided into four volumes by section so that it can be used with ease at work. Refer to
the Table of Contents, select and use the necessary section.
GENERAL INFORMATION SECTION
REPAIR SECTION
TROUBLESHOOTING SECTION
WIRING DIAGRAM SECTION
Each chapter in the manual is basically made of the following four types of areas.
S SPECIFICATIONS AND SERVICE DATA
C COMPONENT PARTS
W SERVICE PROCEDURE
(X SERVICE PROCEDURE)
(Y SERVICE PROCEDURE)
K DIAGNOSTICS
The description of each area is provided with four types of titles different in size as shown below. The Title No.
or Symbol prefixes each title in order that the construction of the article and the flow of explanation can be eas-
ily understood.
[Example of each title]
Area title: W SERVICE PROCEDURE (one of the four types of areas)
Large title (Heading): 1. Oil Pump (to denote the main item of explanation)
Medium title (Section): A: REMOVAL (to denote the type of work in principle)
Small title (Sub-section): 1. INNER ROTATOR (to denote a derivative item of explanation)
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