Dtc P0183 - Mazda 6 Workshop Manual

DTC P0183

DTC P0183 Fuel temperature sensor circuit high input
• The PCM monitors the input signal from the fuel temperature sensor. If the voltage from the fuel
temperature sensor is more than 4.92 V, the PCM determines that there is a malfunction in the fuel
temperature sensor circuit.
DETECTION
Diagnostic support note
CONDITION
• 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.
• Fuel temperature sensor malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between fuel temperature sensor terminal A and PCM terminal 35
POSSIBLE
• Short to power supply in wiring harness between fuel temperature sensor terminal A and PCM terminal 35
CAUSE
• Open circuit in wiring harness between fuel temperature sensor terminal B and PCM terminal 91
• PCM malfunction
FUEL TEMPERATURE SENSOR
FUEL TEMPERATURE SENSOR
WIRING HARNESS-SIDE
CONNECTOR
B A
F2–84
ON-BOARD DIAGNOSTIC
4
A
6
4
B
26 25 24 23
52 51 50
78 77 76 75
104 103 102 101
7
5 8
35
8 7
91
WIRING HARNESS-SIDE
CONNECTOR
22 21 20 19 18 17 16 15 14
49 48 47 46 45 44 43 42 41 40
74 73 72 71 70 69 68 67 66
100 99 98 97 96 95 94 93 92
PCM
PCM
13 12 11 10 9 8 7 6
39 38 37 36 35 34 33 32
65 64 63 62 61 60 59 58
91 90 89 88 87 86 85 84
B6E407000100116
5 4 3 2 1
31 30 29 28 27
57 56 55 54 53
83 82 81 80 79