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Step
7
ECM ground circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from ECM.
3) Measure resistance between each "C41-1", "C41-2" and
"C41-3" wire terminals of ECM connector and body
ground.
Ω
Is resistance 1
or less?
8
Main relay circuit check
1) Using service wire, ground "G04-10" wire terminal of
ECM connector.
2) Turn ignition switch to ON position.
3) Measure voltage between each "G04-5" and "G04-6"
wire terminals of ECM connector and body ground.
Is voltage 10 – 14 V?
9
Main relay circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between each "G04-5" and "G04-6"
wire terminals of ECM connector and "BLK/RED" wire
terminal of main relay connector.
Ω
Is resistance 1
or less?
DTC P0105 (No. 11): Manifold Absolute Pressure (MAP) Circuit Malfunction
Wiring Diagram
Action
AMP
C41 (31P)
9
8
7
6
5
4
3
2
1
21
20
19
18
17
16
15
14
13
12
11
10
31
30
29
28 27
26
25
24
23
22
1. To TP sensor and CO adjust resistor (if equipped)
2. From other sensors
Engine General Information and Diagnosis:
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good ECM and
recheck.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
If OK, substitute a
known-good ECM and
recheck.
Open or high resistance
wire in "BRN/WHT"
circuit.
1
GRY/RED
LT GRN/RED
ORN
2
G04 (24P)
7
6
5
4
3
2
1
6
12
16
15
14
13 12
11
10
9
8
24
23
22
21
20
19
18
17
17
Yes
Open or high resistance
wire in "BLK/ORN" or
"BLK" circuit.
Go to Step 9.
Open or high resistance
in "BLK/RED" circuit.
ECM
5V
5V
C41-22
C41-26
C41-10
G03 (17P)
5
4
3
2
1
11
10
9
8
7
16
15
14
13
1A-46
No
S3RH0A1104016
I2RH0B110022-01
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