EN(H4SO)-23
ENGINE (DIAGNOSTICS)
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
EN-00258
B135
B134
B137
B136
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
To
To
To
To
Content
Con-
nector
No.
Terminal
No.
Signal (V)
Note
Ignition SW ON
(Engine OFF)
Engine ON (Idling)
Crank-
shaft posi-
tion sensor
Signal (+)
B135
6
5*
0
−
7 to +7
Sensor output waveform
Signal (
−
)
B135
17
0
0
—
Shield
B135
28
0
0
—
Camshaft
position
sensor
Signal (+)
B135
7
6*
0
−
7 to +7
Sensor output waveform
Signal (
−
)
B135
18
0
0
—
Shield
B135
28
0
0
—
Throttle
position
sensor
Signal
B135
13
Fully closed: 0.2 — 1.0
Fully opened: 4.2 — 4.7
—
Power
supply
B135
3
5
5
—
GND (sen-
sor)
B135
19
0
0
—
Rear oxy-
gen sen-
sor
Signal
B135
14
0
0 — 0.9
—
Shield
B137
15
0
0
—
GND (sen-
sor)
B135
19
0
0
—
Front oxy-
gen (A/F)
sensor
heater
Signal 1
B136
6
0 — 1.0
0 — 1.0
—
Signal 2
B136
17
0 — 1.0
0 — 1.0
—
Rear oxygen sensor
heater signal
B136
4
0 — 1.0
0 — 1.0
—
Engine
coolant
tempera-
ture sen-
sor
Signal
B135
12
1.0 — 1.4
1.0 — 1.4
After warm-up the engine.
GND (sen-
sor)
B135
19
0
0
After warm-up the engine.
Vehicle speed signal
B137
10
0 or 5
0 or 5
“5” and “0” are repeatedly dis-
played when vehicle is driven.
Starter switch
B136
20
0
0
Cranking: 8 — 14
Summary of Contents for Impreza 2003
Page 2: ......
Page 4: ......
Page 5: ...FOREWORD FW Page 1 Foreword 2...
Page 7: ...HOW TO USE THIS MANUAL HU Page 1 How to Use This Manual 2...
Page 12: ...HU 6 HOW TO USE THIS MANUAL HOW TO USE THIS MANUAL...
Page 13: ...SPECIFICATIONS SPC Page 1 Impreza 2...
Page 36: ...SPC 24 SPECIFICATIONS IMPREZA...
Page 37: ...PRECAUTION PC Page 1 Precaution 2...
Page 39: ...NOTE NT Page 1 Note 2...
Page 42: ...NT 4 NOTE NOTE A Front B Rear 1 Front crossmember 2 Rear differential NT 00062 1 2 A B...
Page 47: ...IDENTIFICATION ID Page 1 Identification 2...
Page 54: ...ID 8 IDENTIFICATION IDENTIFICATION...
Page 55: ...RECOMMENDED MATERIALS RM Page 1 Recommended Materials 2...
Page 63: ...PRE DELIVERY INSPECTION PI Page 1 Pre delivery Inspection 2...
Page 76: ...PI 14 PRE DELIVERY INSPECTION PRE DELIVERY INSPECTION...
Page 126: ...PM 50 PERIODIC MAINTENANCE SERVICES STEERING SYSTEM POWER STEERING...
Page 212: ...IN H4SO 8 INTAKE INDUCTION RESONATOR CHAMBER...
Page 310: ...ME H4SO 98 MECHANICAL ENGINE NOISE...
Page 380: ...SP H4SO 10 SPEED CONTROL SYSTEMS ACCELERATOR CONTROL CABLE...
Page 412: ...SC H4SO 22 STARTING CHARGING SYSTEMS BATTERY...
Page 750: ...EC H4SOw oOBD 8 EMISSION CONTROL AUX EMISSION CONTROL DEVICES TWO WAY VALVE...
Page 751: ...INTAKE INDUCTION IN H4SOw oOBD Page 1 General Description 2...
Page 753: ...MECHANICAL ME H4SOw oOBD Page 1 General Description 2...
Page 766: ...EX H4SOw oOBD 12 EXHAUST MUFFLER...
Page 767: ...COOLING CO H4SOw oOBD Page 1 General Description 2...
Page 769: ...LUBRICATION LU H4SOw oOBD Page 1 General Description 2...
Page 771: ...SPEED CONTROL SYSTEMS SP H4SOw oOBD Page 1 General Description 2...
Page 773: ...IGNITION IG H4SOw oOBD Page 1 General Description 2...
Page 775: ...STARTING CHARGING SYSTEMS SC H4SOw oOBD Page 1 General Description 2...
Page 876: ...EN H4SOw oOBD 100 ENGINE DIAGNOSTICS GENERAL DIAGNOSTIC TABLE...
Page 878: ......
Page 974: ...IN H4DOTC 16 INTAKE INDUCTION RESONATOR CHAMBER...
Page 1108: ...EX H4DOTC 16 EXHAUST MUFFLER...
Page 1164: ...LU H4DOTC 22 LUBRICATION ENGINE LUBRICATION SYSTEM TROUBLE IN GENERAL...
Page 1165: ...SPEED CONTROL SYSTEMS SP H4DOTC Page 1 General Description 2...
Page 1167: ...IGNITION IG H4DOTC Page 1 General Description 2 2 Spark Plug 4 3 Ignition Coil Ignitor ASSY 7...
Page 1174: ...IG H4DOTC 8 IGNITION IGNITION COIL IGNITOR ASSY...
Page 1175: ...STARTING CHARGING SYSTEMS SC H4DOTC Page 1 General Description 2...
Page 1492: ......
Page 1532: ...CS 40 CONTROL SYSTEMS GENERAL DIAGNOSTIC TABLE...
Page 1670: ...4AT 138 AUTOMATIC TRANSMISSION TRANSMISSION CONTROL DEVICE...
Page 1930: ...5MT 122 MANUAL TRANSMISSION AND DIFFERENTIAL GENERAL DIAGNOSTIC...
Page 2062: ...6MT 132 MANUAL TRANSMISSION AND DIFFERENTIAL GENERAL DIAGNOSTIC TABLE...
Page 2114: ...CL 52 CLUTCH SYSTEM GENERAL DIAGNOSTIC TABLE...
Page 2116: ......
Page 2146: ...FS 30 FRONT SUSPENSION GENERAL DIAGNOSTIC TABLE...
Page 2170: ...RS 24 REAR SUSPENSION GENERAL DIAGNOSTIC TABLE...
Page 2612: ...BR 80 BRAKE GENERAL DIAGNOSTICS...
Page 2624: ...PB 12 PARKING BRAKE GENERAL DIAGNOSTIC TABLE...
Page 2908: ...AB 82 AIRBAG SYSTEM DIAGNOSTICS DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE DTC...
Page 2928: ...SB 20 SEAT BELT SYSTEM DISPOSAL OF PRETENSIONER...
Page 2962: ...LI 34 LIGHTING SYSTEM GLOVE BOX LIGHT...
Page 2982: ...WW 20 WIPER AND WASHER SYSTEMS WIPER CONTROL RELAY WAGON MODEL...
Page 2995: ...COMMUNICATION SYSTEM COM Page 1 General Description 2 2 Horn System 3 3 Horn 4 4 Horn Switch 5...
Page 3000: ...COM 6 COMMUNICATION SYSTEM HORN SWITCH...
Page 3035: ...BODY STRUCTURE BS Page 1 General Description 2 2 Datum Points 3 3 Datum Dimensions 11...
Page 3044: ...BS 10 BODY STRUCTURE DATUM POINTS BS 00544 86 85 84 83 94 BS 00546 88 89 93 BS 00545 87...
Page 3056: ...BS 22 BODY STRUCTURE DATUM DIMENSIONS...
Page 3079: ...SEATS SE Page 1 General Description 2 2 Front Seat 6 3 Rear Seat 17...
Page 3098: ...SE 20 SEATS REAR SEAT...
Page 3142: ...SL 44 SECURITY AND LOCKS KEYLESS TRANSMITTER...
Page 3152: ...SR 10 SUNROOF T TOP CONVERTIBLE TOP SUNROOF SUNROOF SWITCH...
Page 3234: ...EB 24 EXTERIOR BODY PANELS REAR GATE PANEL...
Page 3302: ...IM 24 IMMOBILIZER DIAGNOSTICS DIAGNOSTICS CHART WITH DIAGNOSTIC TROUBLE CODE DTC...
Page 3304: ......
Page 3403: ...WI 99 WIRING SYSTEM ENGINE COOLANT TEMPERATURE GAUGE SYSTEM...
Page 3415: ...WI 111 WIRING SYSTEM ENGINE ELECTRICAL SYSTEM...
Page 3427: ...WI 123 WIRING SYSTEM ENGINE ELECTRICAL SYSTEM...
Page 3441: ...WI 137 WIRING SYSTEM ENGINE ELECTRICAL SYSTEM...
Page 3453: ...WI 149 WIRING SYSTEM ENGINE ELECTRICAL SYSTEM...
Page 3465: ...WI 161 WIRING SYSTEM ENGINE ELECTRICAL SYSTEM...
Page 3610: ...WI 306 WIRING SYSTEM REAR WIRING HARNESS AND REAR GATE CORD...