Dtc P0111: Intake Air Temperature Sensor 1 Circuit Range / Performance - Suzuki Swift Sport 2004 Service & Repair Manual

Step
6 Ground circuit check
1) Measure resistance between "C37-55" terminal of ECM
connector and vehicle body ground.
Is resistance below 5
7 MAP sensor signal circuit check
1) Turn ON ignition switch.
2) Measure voltage between "RED/BLK" wire terminal of
MAP sensor connector and engine ground.
Is voltage 4 – 6 V?
8 MAP sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between "RED/BLK" wire terminal of
MAP sensor connector and "C37-53" terminal of ECM
connector.
Is resistance below 2
9 MAP sensor output signal check
1) Check MAP sensor according to "MAP Sensor
Inspection in Section 1C".
Is it in good condition?

DTC P0111: Intake Air Temperature Sensor 1 Circuit Range / Performance

Wiring Diagram
3 ORN
15 14 13 12 11
30 29 28 27 26
44
45 43 42 41
59
60 58 57 56
1. MAF and IAT sensor
2. ECM
Action
Ω
?
Ω
?
1
BLK/RED
GRY/BLU
E23
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
Engine General Information and Diagnosis:
"ORN" wire is open or
high resistance circuit.
Go to Step 9.
"RED/BLK" wire is
shorted to power supply
circuit.
Substitute a known-
good ECM and recheck.
4
GRN/BLK
GRY
BLK/YEL
ORN
2 1 15 14 13 12 11
17 16 30 29 28 27 26
44
32 31 45 43 42 41
59
47 46 60 58 57 56
3. To other sensors
4. From main relay
Yes
ECM grounds "E23-31",
"C37-58", "C37-15" and/
or "C37-30" circuit are
open or high resistance.
If wires are OK,
substitute a known-
good ECM and recheck.
Go to Step 8.
"RED/BLK" wire is open
or high resistance
circuit.
Faulty MAP sensor.
2
C37-26
C37-27
5V
C37-25
C37-55
C37
10 9 8 7 6 5 4 3
25 24 23 22 21 20 19 18
40 39 38 37 36 35 34 33
55 54 53 52 51 50 49 48
1A-69
No
S7RS0B1104023
2 1
17 16
32 31
47 46
I4RS0B110018-01