Engine General Information and Diagnosis: 1A-214
C37-9
BLU
Electric load
current sensor
signal (for J20
engine)
0.5 – 1.0 V
Ignition switch turned ON.
—
1.3 – 1.7 V
Run engine at 2000 rpm,
headlight switch turned
ON.
1.8 – 2.4 V
Run engine at 2000 rpm,
headlight switch ON and
blower selector at HI
position.
C37-10
GRN/
WHT
CO adjusting
resistor signal (for
J20 engine, if
equipped)
0 – 5 V
Ignition switch turned ON.
—
C37-11
RED
Oxygen signal of
heated oxygen
sensor-2
4 – 5 V
Ignition switch turned ON.
—
*Approx. 0.15 V
(“Reference
waveform No.7: ” and
“Reference waveform
No.8: ”)
Engine running at idle
after warmed up engine.
C37-12
GRY/
BLK
A/C refrigerant
pressure sensor
signal (if equipped
with A/C)
1.38 – 1.52 V
Engine running, A/C
switch OFF and blower
selector at OFF position,
A/C refrigerant pressure:
800 kPa (116 psi)
—
2.15 – 2.38 V
Engine running, A/C
switch ON and blower
selector at 1st position or
more, A/C refrigerant
pressure: 1400 kPa (203
psi)
2.67 – 2.95 V
Engine running, A/C
switch ON and blower
selector at 1st position or
more, A/C refrigerant
pressure: 1800 kPa (261
psi)
C37-13
GRN/
BLK
EVAP canister
purge valve output
10 – 14 V
Ignition switch turned ON
with engine at stop.
—
*0 – 0.6 V
↑↓
10 – 14 V
(“Reference
waveform No.9: ”)
Set EVAP canister purge
valve at 52% by using
“Misc Test” of scan tool.
Output signal is active low
duty pulse. Duty ratio
varies depending on
vehicle condition.
C37-14
GRY/
RED
Output of 5 V
power source for
MAP sensor, A/C
refrigerant
pressure sensor,
electric load
current sensor (for
J20 engine) and
CO adjusting
resistor (if
equipped)
4.5 – 5.5 V
Ignition switch turned ON.
—
C37-15
BLK/
ORN
Ground for ECM
Below 0.3 V
Ignition switch turned ON.
—
Terminal
No.
Wire
color
Circuit
Normal voltage
Condition
Remarks
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