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23-12
ENGINE CONTROLS
(Refer to Section 201 for photographs.)
Ground
B-19
Behind top of left dash side trim panel
71
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-26
Below rear of center console
67
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-16
Left rear corner of engine compartment, on inner fender panel
39
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
C-39
Right rear corner of engine compartment, on inner fender panel
45
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
E-28
Top left rear of engine
32
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-29
Top left front of engine
32
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-30
Top right rear of engine
16
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Operation
The engine or powertrain control
module (ECM or PCM) receives
inputs from the engine sensors
and
switches,
controlling
the
functions of the engine. The ECM
or PCM also turns on the “CHECK
ENGINE” malfunction indicator
light whenever a malfunction or
abnormal engine performance is
detected, and allows for diagnos-
tic testing through the data link
connector (DLC).
Refer to Section 6 of the Work-
shop Manual for further engine
diagnosis.
Component Location Index
VEHICLE SPEED SENSOR (VSS)
Dash Fuse Box
Engine or Powertrain Control
Module (ECM or PCM)
Vehicle Speed Sensor (VSS)
Component Index
33
VEHICLE SPEED SENSOR (VSS)
HOT IN ON OR START
C-10
METER
GAUGE
10A
SB13
BLU/YEL
26
(S model)
15
I-9
DASH
FUSE
BOX
See Dash
Fuse Box,
page 11-3.
BLU/YEL
Ground
Ignition
Vehicle
speed
input
SPEEDOMETER
Solid-state:
Do not check
resistance.
METER
ASSEMBLY
(S model)
19
21
5
3
1
M-10
VEHICLE SPEED
SENSOR (VSS)
(A/T)
(M/T)
BLU/YEL
H-10
BLU/YEL
2
2
M-10
H-42
BLK/RED
2
H-16
I-10
BLU/YEL
15
H-7
C-39
Meter Assembly
See Ground
Distribution,
page 14-8.
BLK/PNK
BLK/PNK
ENGINE or
POWERTRAIN
CONTROL
MODULE
(ECM or PCM)
Solid-state:
Do not check
resistance.
27
E-22
11
9
LT GRN/WHT
LT GRN/WHT
10
VSS
input
10
H-25
BLU/YEL
I-9
(S model)
I-10
4
H-9
LT GRN/WHT
LT GRN/WHT
LT GRN/WHT
SOLID STATE
SENSOR
BLK/RED
8
C-15
AUDIO [B]
20A
RED/WHT
8
Battery
7
H-25
HOT AT ALL TIMES
I-10
RED/WHT
RED/WHT
RED/WHT
See Dash
Fuse Box,
page 11-4.
Meter Assembly
11
H-5
LT GRN/WHT
H-10
4
BLK/RED
Circuit Schematic
33-1
VEHICLE SPEED SENSOR (VSS)
(Refer to Section 201 for photographs.)
Component
Photo No.
Dash Fuse Box
Behind left dash side trim panel
55
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine or Powertrain Control
Module (ECM or PCM)
Right side of engine compartment
60
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Speed Sensor (VSS)
(A/T)
Beneath center of vehicle, on rear of transmission
129
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Speed Sensor (VSS)
(M/T)
Beneath center of vehicle, on rear of transmission
119
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Connector
H-7 (20-BRN/WHT)
Below I/P, above left dash side trim panel, on bracket
69
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-9 (20-BLK)
Below I/P, above left dash side trim panel, on bracket
70
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-10 (16-BLU)
Left front of engine compartment
27
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-16 (22-WHT)
Behind right dash side trim panel
120
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-25 (22-BLU)
Below I/P, above left dash side trim panel, on bracket
71
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
I-9 (30-GRN)
On left top of meter assembly
53
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-10 (22-GRN)
On right top of meter assembly
53
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
C-39
Right rear corner of engine compartment, on inner fender panel
45
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
Circuit Operation
With the starter switch in ON or START, the VSS re-
ceives power. For every rotation, the VSS outputs four
pulses to the engine (M/T) or powertrain (A/T) control
module (ECM or PCM), and the speedometer to gauge
speed.
Component Location Index
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