Page 2037 of 2870
EN(H4DOTC 2.5)-13
ENGINE (DIAGNOSTIC)
Electrical Component Location
SOLENOID VALVE, ACTUATOR, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM
PARTS
(1) Wastegate control solenoid valve (3) Ignition coil (5) Oil flow control solenoid valve
(4) Tumble generator valve actuator (2) Purge control solenoid valve (6) Injector
EN-00310 (1)EN-00311 (2)
EN-02411
(4)(4) (1)
(5)(5)(3)(6)(2)(3)(5)(6)
Page 2043 of 2870

EN(H4DOTC 2.5)-19
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Radiator fan relay 2 con-
trolB135 24ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14Model with A/C only
Malfunction indicator
lightB134 17 — —Light “ON”: 1, or less
Light “OFF”: 10 — 14
Engine speed output B134 23 — 0 — 13, or more Waveform
Purge control solenoid
valveB134 14ON: 1, or less
OFF: 10 — 13ON: 1, or less
OFF: 13 — 14Wavefor m
Manifold
absolute
pressure
sensorSignal B136 22 1.7 — 2.4 1.1 — 1.6
— Pow er
supplyB136 16 5 5
GND
(sensors)B136 35 0 0
Small light switch B137 12ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Blower fan switch B137 13ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Rear defogger switch B137 11ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Power steering oil pres-
sure switchB137 10 10 — 13ON: 0
OFF: 13 — 14—
Front oxygen (A/F) sen-
sor signal (+)B134 33 2.8 — 3.2 2.8 — 3.2 —
Front oxygen (A/F) sen-
sor signal (−)B134 26 2.4 — 2.7 2.4 — 2.7 —
Front oxygen (A/F) sen-
sor shieldB134 25 0 0 —
SSM/GST communica-
tion lineB137 20 1 ← → 41 ← → 4—
GND (injector) B137 7 0 0 —
GND (ignition system) B135 12 0 0 —
GND (power supply)B135 4 0 0 —
B135 1 0 0 —
GND (control system)B137 1 0 0 —
B137 2 0 0 —
GND (Front oxygen (A/F)
sensor heater 1)B134 7 0 0 —
GND (Front oxygen (A/F)
sensor heater 2)B134 6 0 0 —
Camshaft position sen-
sor (LH)B135 8 0 — 0.9ON: 0
OFF: 4.7 — 5.3Wavefor m
Camshaft position sen-
sor (RH)B135 9 0 — 0.9ON: 0
OFF: 4.7 — 5.3Wavefor m
Fuel level sensor B136 20 0.12 — 4.75 0.12 — 4.75 —
Electronic
throttle
controlMain B136 180.64 — 0.72
Fully opens:
3.960.64 — 0.72
(After engine is
warmed-up.)Fully closed: 0.6 Fully opens:
3.96
Sub B136 291.51 — 1.58
Fully opens:
4.171.51 — 1.58
(After engine is
warmed-up)Fully closed: 1.48 Fully opens:
4.17
Pow er
supplyB136 16 5 5 —
GND
(sensor)B137 3 0 0 — DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ignition SW ON
(engine OFF)Engine ON
(Idling)
Page 2044 of 2870

EN(H4DOTC 2.5)-20
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Electronic throttle con-
trol motor (+)B137 5 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle con-
trol motor (−)B137 4 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle con-
trol motor power supplyB137 6 10 — 13 13 — 14 —
Electronic throttle con-
trol motor relayB135 35ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14When ignition switch is turned to
ON: ON
Oil flow
control
solenoid
(LH)Signal (+) B134 19ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Signal (−) B134 29 0 0 —
Oil flow
control
solenoid
(RH)Signal (+) B134 18ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Signal (−) B134 28 0 0 —
Accelera-
tor Pedal
Po si ti o n
SensorMain B136 17Fully closed: 1
Fully opens: 3.5Fully closed: 1
Fully opens: 3.5—
Pow er
supplyB136 15 5 5 —
GND
(sensor)B136 34 0 0 —
Sub B136 28Fully closed: 1
Fully opens: 3.5Fully closed: 1
Fully opens: 3.5—
Main light B134 15ON: 0
OFF: 10 — 13ON: 0
OFF: 13 — 14—
Clutch switch B134 1When clutch
pedal is
depressed: 0
When clutch
pedal is
released: 10 —
13When clutch
pedal is
depressed: 0
When clutch
pedal is
released: 13 —
14—
SET/COAST switch B136 11ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Brake switch 1 B136 9When brake
pedal is
depressed: 0
When brake
pedal is
released: 10 —
13When brake
pedal is
depressed: 0
When brake
pedal is
released: 13 —
14—
Brake switch 2 B136 8When brake
pedal is
depressed: 10
— 13
When brake
pedal is
released: 0When brake
pedal is
depressed: 13
— 14
When brake
pedal is
released: 0—
RESUME/ACCEL
switchB136 10ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
Main switch B136 7ON: 10 — 13
OFF: 0ON: 13 — 14
OFF: 0—
CAN Com-
municationSignal (+) B137 18 Pulse signal —
Signal (−) B137 26 Pulse signal — DESCRIPTION Connector No. Terminal No.Signal (V)
NOTE
Ignition SW ON
(engine OFF)Engine ON
(Idling)
Page 2083 of 2870
EN(H4DOTC 2.5)-59
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
D: IGNITION CONTROL SYSTEM
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode
OPERATION, Clear Memory Mode.> and Inspection Mode
Inspection Mode.>.
WIRING DIAGRAM:
EN-02357
IGNITION
SWITCH
SBF-4SBF-1
B72
B135
18
17
16
15
ECM
No.11
E
E
41
E2 B21
E31
E31
E32
E33
E34IGNITION COIL
No.1IGNITION COIL
No.2IGNITION COIL
No.3IGNITION COIL
No.4
E32E33E34
123
123
4
56
78
9
1011 12
1314 15 16
B21B135B72
34
12
3
1
23
1
2
5 4
6
7
8
3
1
23
1
2
567
82 1
94 310
24 22 23 2511 12 13 14 15
26 27
2816 17 18 19
20 21
29 30 31 32 33 34 35
BATTERY
Page 2084 of 2870

EN(H4DOTC 2.5)-60
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
Step Check Yes No
1 CHECK SPARK PLUG CONDITION.
1) Remove the spark plug.
IG(H4DOTC)-6, INSTALLATION, Spark Plug.>
2) Check the spark plug condition.
IG(H4DOTC)-6, INSPECTION, Spark Plug.>Is the spark plug’s status OK? Go to step 2.Replace the spark
plug.
2 CHECK IGNITION SYSTEM FOR SPARKS.
1) Connect the spark plug to ignition coil.
2) Release the fuel pressure.
FU(H4DOTC 2.5)-45, RELEASING OF FUEL
PRESSURE, OPERATION, Fuel.>
3) Contact the spark plug’s thread portion on
engine.
4) While opening the throttle valve fully, crank
the engine to check that spark occurs at each
cylinder.Does spark occur at each cyl-
inder?Check fuel pump
system.
EN(H4DOTC 2.5)-
62, FUEL PUMP
CIRCUIT, Diag-
nostics for Engine
Starting Failure.>Go to step 3.
3 CHECK POWER SUPPLY CIRCUIT FOR IG-
NITION COIL & IGNITOR ASSY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ignition coil
& ignitor ASSY.
3) Turn the ignition switch to ON.
4) Measure the power supply voltage between
ignition coil & ignitor ASSY connector and
engine ground.
Connector & terminal
(E31) No. 3 (+) — Engine ground (
−):
(E32) No. 3 (+) — Engine ground (
−):
(E33) No. 3 (+) — Engine ground (
−):
(E34) No. 3 (+) — Engine ground (
−):Is the voltage more than 10 V? Go to step 4.Repair the harness
and connector.
N
OTE:
In this case repair
the following:
Open circuit in
harness between
ignition coil & igni-
tor ASSY, and igni-
tion switch
connector
Poor contact in
coupling connector
4 CHECK HARNESS OF IGNITION COIL & IG-
NITOR ASSY GROUND CIRCUIT.
1) Turn the ignition switch to OFF.
2) Measure the resistance between ignition
coil & ignitor ASSY connector and engine
ground.
Connector & terminal
(E31) No. 2 — Engine ground:
(E32) No. 2 — Engine ground:
(E33) No. 2 — Engine ground:
(E34) No. 2 — Engine ground:Is the resistance less than 5
Ω?Go to step 5.Repair the harness
and connector.
N
OTE:
In this case repair
the following:
Open circuit in
harness between
ignition coil & igni-
tor ASSY connec-
tor and engine
ground terminal
5 CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL & IGNITOR ASSY CONNEC-
TOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Disconnect the connector from ignition coil
& ignitor ASSY.
4) Measure the resistance of harness
between ECM and ignition coil & ignitor ASSY
connector.
Connector & terminal
(B135) No. 15 — (E34) No. 1:
(B135) No. 16 — (E33) No. 1:
(B135) No. 17 — (E32) No. 1:
(B135) No. 18 — (E31) No. 1:Is the resistance less than 1
Ω?Go to step 6.Repair the harness
and connector.
N
OTE:
In this case repair
the following:
OPEN CIR-
CUIT IN HAR-
NESS BETWEEN
ECM AND IGNI-
TION COIL &
IGNITOR ASSY
CONNECTOR.
Poor contact in
coupling connector
Page 2085 of 2870
EN(H4DOTC 2.5)-61
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
6 CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL & IGNITOR ASSY CONNEC-
TOR.
Measure the resistance of harness between
ECM and engine ground.
Connector & terminal
(B135) No. 15 — Engine ground:
(B135) No. 16 — Engine ground:
(B135) No. 17 — Engine ground:
(B135) No. 18 — Engine ground:Is the resistance more than 1
MΩ?Go to step 7.Repair ground
short circuit in har-
ness between
ECM and ignition
coil & ignitor ASSY
connector.
7 CHECK POOR CONTACT.
Check poor contact in ECM connector.Is there poor contact in ECM
connector?Repair the poor
contact in ECM
connector.Check fuel pump
circuit.
EN(H4DOTC 2.5)-
62, FUEL PUMP
CIRCUIT, Diag-
nostics for Engine
Starting Failure.> Step Check Yes No
Page 2240 of 2870
EN(H4DOTC 2.5)-216
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BT:DTC P2088 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 1)
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode
OPERATION, Clear Memory Mode.> and Inspection Mode
Inspection Mode.>.
WIRING DIAGRAM:
EN-02375
B22
E3
B134
E38
28 2 1
2
1
E38
B22
12
18
125678
131415169101112
34
17181920
B134
56 7
82 1
94 3
10
24 22 23 25 11 12 13 14 15
26 27
2816 17
18 19 20 21
33 34 29
32 30 31
ECM
OIL FLOW CONTROL SOLENOID VALVE RH
Page 2241 of 2870

EN(H4DOTC 2.5)-217
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and oil
flow control solenoid valve.
3) Measure the resistance between ECM and
oil flow control solenoid valve.
Connector & terminal
(B134) No. 18 — (E38) No. 1:
(B134) No. 28 — (E38) No. 2:Is the resistance less than 1
Ω?Go to step 2.Repair open circuit
in harness between
ECM and oil flow
control solenoid
valve connector.
N
OTE:
In this case, repair
the following
Open circuit in
harness between
ECM and oil flow
control solenoid
valve connector
Poor contact in
coupling connector
2 CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
Measure the resistance between oil flow con-
trol solenoid valve and engine ground.
Connector & terminal
(E38) No. 1 — Engine ground:
(E38) No. 2 — Engine ground:Is the resistance more than 1
MΩ?Go to step 3.Repair short circuit
between ECM and
oil flow control
solenoid valve
connector.
3 CHECK OIL FLOW CONTROL SOLENOID
VALVE.
1) Remove the oil flow control solenoid valve
connector.
2) Measure the resistance between oil flow
control solenoid valve terminals.
Te r m i n a l s
No. 1 — No. 2:Is the resistance 6 — 12 Ω? Repair poor con-
tact in ECM and oil
flow control sole-
noid valve.Replace the oil
flow control sole-
noid valve.
to ME(H4DOTC)-
68, Camshaft.>