Mercury V6 175 Diagnostic Manual page 37

Pin Function
BD4 Water‑in‑fuel sensor
BE4 Paddle wheel sensor signal
BF4 Not used
BG4 Not used
Throttle demand sensor
BH4
position 2
Throttle position sensor 2 (TPS
BJ4
2) signal
BK4 Camshaft position sensor
BL4 Not used
BM4 Trim down relay control
Connector C
CH4 CG4
CH3 CG3
CH2 CG2
CH1 CG1
90-8M0146617 eng JULY 2018
Wire Color
Tan/purple
Gray/blue
–
–
Gray/white
White/yellow
Red/white
–
Green/white
C
CE4 CC4
CF4 CD4
CE3
CF3 CD3
CC3
CF2 CE2
CD2 CC2
CF1 CE1 CD1
CC1
PCM 112 Important Information and Pinouts
Application Notes
–
Paddle wheel provides boat speed data to
SmartCraft gauges. If a pitot sensor is also installed,
–
the paddle provides slow speed data, while the pitot
provides high speed data.
–
–
Not used on DTS
engines
3‑wire position sensor. Measured circuit voltage is
opposite of TPS 1. Voltage is high when throttle is
closed and low when throttle is open. The service
–
tool indicates voltage changes in the same direction
as TPS 1. This is not accurate when physically
measuring signals with multimeter.
– Hall effect sensor
–
The PCM grounds this pin to activate the trim down
–
relay.
CB4 CA4
CB3 CA3
B1A B1B B1C B1D B1E B1F B1G B1H B1J B1K
B2A B2B B2C B2D B2E B2F B2G B2H B2J B2K
B3A B3B B3C B3D B3E B3F B3G B3H B3J B3K
CB2
CA2
B4A B4B B4C B4D B4E B4F B4G B4H B4J
CB1
CA1
© 2018 Mercury Marine
Description
–
–
–
–
–
B A
B1M A1A A1B A1C A1D A1E A1F
B1L
B2M A2A A2B A2C A2D A2E A2F
B2L
B3M A3A A3B A3C A3D A3E A3F
B3L
A4A A4B A4C A4D A4E A4F A4G
B4K B4L B4M
A1G A1H
A2G A2H
A3G A3H
A4H
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