Dtc P0106: Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance - Suzuki Swift Sport 2004 Service & Repair Manual

1A-64 Engine General Information and Diagnosis:
Step
6 MAF sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure voltage between "GRY/BLK" wire terminal of
MAF and IAT sensor connector and engine ground.
Is voltage 0 V?
7 MAF sensor output signal check
1) Connect connector to MAF and IAT sensor and ECM
with ignition switch turned OFF.
2) Measure voltage between "C37-26" and "C37-27"
terminal of ECM connector referring to "MAF and IAT
Sensor On-Vehicle Inspection in Section 1C".
Is each value within specified range?

DTC P0106: Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance

Wiring Diagram
1
15 14 13 12 11
30 29 28 27 26
45 44 43 42 41
60 59 58 57 56
1. Manifold absolute pressure sensor
2. To A/C refrigerant pressure sensor (if equipped with A/C)
DTC Detecting Condition and Trouble Area
DTC detecting condition
• Difference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than 1.3
kPa (0.19 psi) when engine running at idle speed.
• Difference between barometric pressure value and
manifold pressure value is less than 33.3 kPa (4.83 psi)
for 5 sec. at 2000 r/mini. or more.
(2 driving cycle detection logic)
Action
2
GRY/RED
RED/BLK
ORN
3
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
Go to Step 7.
Substitute a known-
good ECM and recheck.
GRY/RED C37-14
C37-53
ORN C37-55
2 1 15 14 13 12 11
17 16 30 29 28 27 26
32 31 45 44 43 42 41
47 46 60 59 58 57 56
• Manifold absolute pressure sensor
• Manifold absolute pressure sensor vacuum passage
• Air intake system
• ECM
Yes
"GRY/BLK" wire is
shorted to other circuit.
Faulty MAF and IAT
sensor.
4
5V
5V
C37-58 BLK/ORN
C37-15
BLK
C37-30 BLK
E23-31 BLK
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
3. To other sensors
4. ECM
Trouble area
No
S7RS0B1104020
2 1
17 16
32 31
47 46
I6RS0C110008-02