CIRCUIT INSPECTION
INSPECTION
AT
ECM CONNECTOR
• Always clean around and keep any foreign material away from the ECM
33P (Black) connector before disconnecting
it.
• A faulty PGM-FI system
is
often related to poorly connected or corroded
connections. Check those connections before proceeding.
•
In
testing at ECM 33P (Black) connector (wire side) terminal, always use
the test probe [1]. Insert the test probe into the connector terminal, then
attach the digital multimeter probe to the test probe.
TOOL:
Test probe, 2 pack
07ZAJ-RDJA 110
('13 L)
DTC
(Mil
Function Failure
blinks)
1-1
(1)
MAP sensor circuit low voltage (less than 0.200 V)
.
MAP sensor or its circuit malfunction
MAP sensor circuit high voltage (more than 3.848 V)
1-2(1)
.
Loose
or
poor contact of the sensor unit 5P
(Black) connector
.
MAP sensor or its circuit malfunction
7-1
(7)
ECT sensor circuit low voltage (less than 0.078 V)
.
ECT sensor or its circuit malfunction
ECT sensor circuit high voltage (more than 4.922 V)
7-2
(7)
.
Loose or poor contact of the ECT sensor
connector
.
ECT sensor or its circuit malfunction
TP sensor circuit low voltage (less than 0.200 V)
8-1
(8)
.
Loose or poor contact of the sensor unit
5P
(Black) connector
.
TP sensor or its circuit malfunction
8-2 (8)
TP sensor circuit high voltage (more than 4.902 V)
.
TP sensor or its circuit malfunction
9-1
(9)
IAT sensor circuit low voltage (less than 0.078 V)
.
IAT sensor or its circuit malfunction
IAT sensor circuit high voltage (more than 4.922 V)
9-2 (9)
.
Loose or poor contact of the sensor unit 5P
(Black) connector
.
IAT sensor or its circuit malfunction
Fuel injector malfunction
12-1 (12)
.
Loose or poor contact of the fuel injector
connector
.
Fuel injector or its circuit malfunction
02
sensor malfunction
21-1 (21)
.
Loose or poor contact of the
02
sensor connector
.
02
sensor or its circuit malfunction
IACV malfunction
29-1 (29)
.
Loose
or
poor contact of the IACV connector
.
IACV or its circuit malfunction
CKP sensor malfunction
52-1 (52)
.
Loose or poor contact of the CKP sensor
connector
.
CKP sensor or its circuit malfunction
PGM
..
FI
SYSTEM
[1]
Refer
Symptom/Fail-safe function
to
.
Engine operates normally
4-17
.
Pre-program value:
61
kPa
.
Engine operates normally
.
Pre-program value:
61
kPa
4-19
.
Hard start at a low temperature
4-20
.
Pre-program value:
82
°C/180
°F
.
Hard start at a low temperature
.
Pre-program value:
82
°C/180
°F
4-21
.
Poor engine acceleration
.
Pre-program value:
0°
4-22
.
Poor engine acceleration
4-24
.
Pre-program value:
0°
.
Engine operates normally
4-25
.
Pre-program value:
35
°C/95 °F
.
Engine operates normally
.
Pre-program value:
35
°C/95 °F
4-26
.
Engine does not start
.
Fuel injector, fuel pump and ignition
4-27
coil shut down
.
Engine operates normally
4-29
.
Engine stalls, hard to start, rough idling
4-30
.
Engine does not start
4-32
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