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Engine Controls
(2.2L) (3.2L)
YEL
YEL
See Dash
Fuse Box,
page 11-3.
GAUGES
Circuit Schematic
81
HOT IN ON OR START
CB-11
METER
15A
TACHOMETER
Solid-state:
Do not check
resistance.
DASH
FUSE
BOX
I-1
Connector
14
6
BLK/RED
30
1
WHT/BLK
4
WHT/BLK
H-4
Connector
4
WHT/BLK
ENGINE
COOLANT
TEMPERATURE
(ECT) SENSOR
(2.2L) (3.2L)
ENGINE
COOLANT
TEMPERATURE
GAUGE
16
BLK
H-16
Connector
16
Indicators
See Ground
Distribution,
page 14-6.
I-2
Connector
C-16
BLK
H-16
Connector
3
(2.2L) WHT/BLK
(3.2L) BLK/RED
ENGINE or
POWERTRAIN
CONTROL MODULE
(ECM or PCM)
(2.2L)
(3.2L)
Solid State:
Do not check
resistance.
E-
21
(3.2L)
C-2
(2.2L)
Connector
(3.2L)
7
(2.2L) C10
RPM
output
BLK
I-1
Connector
H-4
Connector
39
(2.2L) WHT/BLK
(3.2L) BLK/RED
BLK
E-20
Connector
2
BLU/
RED
ENGINE or
POWERTRAIN
CONTROL
MODULE
(ECM or PCM)
(2.2L)
(3.2L)
Solid State:
Do not check
resistance.
ECT output
Sensor
ground
ECT
input
(3.2L) 47
(2.2L) A11
E-22 (3.2L)
C-1 (2.2L)
Connector
(3.2L) 74
(2.2L) E9
(3.2L) 53
(2.2L) D8
E-21
(3.2L)
C-2
(2.2L)
Connec-
tor
(3.2L) YEL/BLK
(2.2L) GRN
BLK/RED
BLK/RED
(3.2L) YEL/BLK
(2.2L) GRN
E-21 (3.2L)
C-3 (2.2L)
Connector
H-5
Connector
16
BLU/
RED
2.2L
A
From Meter
Assembly on
page 81-1.
BLK
INTELLIGENT
SUSPENSION
CONTROL
UNIT
Solid State:
Do not check
resistance.
3.2L
H-16
Connector
BLK/RED
TRANSFER
CONTROL
UNIT
B-19
Connector
16
H-18
Connector
4
*3
BLK/RED
BLK/RED
BLK
* = Rodeo Sport
C-52
Connector
17
3.2L
ENGINE or
POWERTRAIN
CONTROL MODULE
(ECM or PCM)
(2.2L)
(3.2L)
Solid State:
Do not check
resistance.
Low fuel
output
Fuel level
output
Fuel level
input
Sensor
ground
GAUGES
Circuit Schematic
81Ć1
SPEEDOMETER
Solid State:
Do not check
resistance.
7
BLK/YEL
Vehicle Speed
Sensor (VSS)
Page 33
(2.2L)
Page 33-1
(3.2L)
METER
ASSEMBLY
FUEL
GAUGE
3
12
BLK
To splice on
page 81.
I-2
Connector
YEL/RED
2
H-16
Connector
YEL/RED
A
Indicators
Page 80-4
PNK
C-2 (2.2L)
E-22 (3.2L)
Connector
E-1 (3.2L)
Connector
ODO/TRIP
METER
(3.2L) 31
C11
(2.2L
)
48 (3.2L)
10.1
W
BLU/
YEL
(2.2L)
D9
(3.2L)
60
C-2 (2.2L)
E-22 (3.2L)
Connector
ORN/GRN
(2.2L)
B5
(3.2L)
50
C-1
(2.2L)
E-22 (3.2L)
Connector
(2.2L) GRY/BLK
(3.2L) BLU/YEL
Engine Controls
Page 23-4
*
1
2
ORN/
GRN
ORN/
GRN
8 (2.2L)
11
BLU/
YEL
(2.2L) GRY/BLK
(3.2L) BLU/YEL
H-15
Connector
FUEL
TANK
UNIT
F
E
80
W
to
290
W
VIO
VIO
FUEL
TANK
SENDER
4
1
HOT at all times
EB-13
ECM
15A (2.2L)
10A (3.2L)
FUSE/
RELAY
BOX
RED/WHT
11
H-16
Connector
I-1
Connector
13
See Power
Distribution,
page 10-1
or 10-3.
RED/WHT
I-9
Connector
I-1
Connector
YEL/RED
36
H-4
Connector
3
*
2
11
12
H-4
Connector
* = with Intelligent Suspension System
ORN/
GRN
BLU/
YEL
H-25
*
H-35
Connector
F-1
Connector
RED/WHT
3.2L
3.2L
9 (2.2L)
17
2.2L
Engine Coolant Temperature Gauge
The engine coolant temperature gauge consists of two
intersecting coils wound around a permanent magnet
rotor. When voltage from the CB-11 fuse is applied to
the coils, a magnetic field is generated. This causes the
rotor to rotate and the gauge needle to move.
The mag-
netic field is controlled by the sender (2.2L)/ECT sensor
through the ECM or PCM (3.2L).
As the resistance in
the sender/sensor varies, current through the gauge
coils changes. The gauge needle moves according to
the changing magnetic field.
Fuel Gauge
The fuel gauge consists of two intersecting coils wound
around a permanent magnet rotor (see engine coolant
temperature gauge for operation). The engine (M/T) or
powertrain (A/T) control module (ECM or PCM) moni-
tors the fuel level by the resistance level in the fuel tank
unit. The fuel tank unit resistance varies from approxi-
mately 80 ohms with the fuel tank full to 290 ohms with
the tank empty. The ECM or PCM then uses this in-
formation to control the fuel gauge.
Tachometer
The tachometer displays engine speed in RPM. Volt-
age pulses are taken from the ignition system and sent
to the tachometer. The tachometer responds to the fre-
quency of the voltage pulses, which increases with en-
gine speed. Solid-state circuits process these pulses
into a signal that causes the gauge needle to move.
GAUGES
Circuit Operation
81Ć2
Component Location Index
(Refer to Section 201 for photographs.)
Component
Photo No.
Dash Fuse Box
Left side of I/P, behind panel
58
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature
(ECT) Sensor (2.2L)
Left rear of engine
30
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature
(ECT) Sensor (3.2L)
Front of engine, in engine coolant manifold
49
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control Module (ECM)
(3.2L)
Left side of engine compartment
44
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine or Powertrain Control
Module (ECM or PCM)
(2.2L)
Below center of I/P
73
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Unit
Beneath vehicle, in top of fuel tank
. . . . . . . . . . . . . .
Connector
F-1 (4-BLK)
Under vehicle, on top of gas tank
. . . . . . . . . . . . . . . . .
H-4 (52-GRY)
Left side of engine compartment
27
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-5 (16-GRN)
Left side of engine compartment
11
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-15 (20-BLU)
Behind left kick panel
63
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-16 (22-BLK)
Behind left kick panel
62
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-18 (22-WHT) (LWB)
Behind right kick panel
80
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-18 (12-WHT) (SWB)
Behind right kick panel
80
. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-25 (13-WHT)
Under driver’s seat, below carpet
72
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-35 (22-WHT)
Under driver’s seat, below carpet
72
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-1 (30-GRN)
Behind left side of I/P, on top of meter assembly
86
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
I-2 (16-GRN)
Behind left side of I/P, on top of meter assembly
86
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
I-9 (14-GRN)
Behind left side of I/P, on top of meter assembly
86
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
C-16
Left rear corner of engine compartment, on inner fender panel
43
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
A/T SHIFT INDICATOR
Component Index
Alarm and Relay Control Unit
Automatic Transmission Mode Switch
Combination Switch
2.2L
3.2L
Dash Fuse Box
2.2L
3.2L
Data Link Connector (DLC) C-34 (16-BLK)
Meter Assembly
2.2L
3.2L
Multi-plexed Indicator Control Unit
Neutral Start Switch
Powertrain Control Module (PCM) (2.2L)
Taillight Relay
2.2L
3.2L
Transfer Control Module
Transmission Control Module (TCM) (3.2L)
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