Mazda 6 - Dtc P0108

F2–64
ON-BOARD DIAGNOSTIC
DTC P0108
B6E407000100106
DTC P0108 Boost sensor circuit high input
DETECTION
CONDITION
• The PCM monitors the input signal from the manifold absolute pressure sensor. If the voltage from the
manifold absolute pressure sensor is more than 4.8 V, the PCM determines that there is a malfunction in
the manifold absolute pressure sensor circuit.
Diagnostic support note
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
POSSIBLE
CAUSE
• Boost sensor malfunction
• Connector or terminal malfunction
• Short to power supply in wiring harness between boost sensor terminal B and PCM terminal 36
• Short to power supply in wiring harness between boost sensor terminal C and PCM terminal 90
• Open circuit in wiring harness between boost sensor terminal A and PCM terminal 91
• PCM malfunction
90
36
91
C
B
A
4
4 5
4 8
6
7
7
7
BOOST SENSOR
PCM
BOOST SENSOR
WIRING HARNESS-SIDE
CONNECTOR
PCM
WIRING HARNESS-SIDE
CONNECTOR
ABC
1234567891011121314151617181920212223242526
27282930
53
54
555657
58
5960
798081828384858687888990
31323334
35
36
37383940
61
62
6364
6566
6768
6970
919294 939596979899100
41
4243
44
4546
47
484950
71
7273
74
7576
7778
51
52
101102103104