Map Sensor Removal; Map Sensor Installation; Oil Level Sensor - Mercury V6 175 Diagnostic Manual

4. Perform a continuity check on the sensor wiring between the sensor connector and the PCM. Note that there are splices in
the sensor ground circuit.
DMT 2004 Digital Multimeter
Terminal Test Probe Kit
A
b
H
1 4
Connector
A

MAP Sensor Removal

1. Cut the cable tie, and disconnect the engine harness connector.
2. Disconnect the hose from the sensor.
3. Remove the sensor from the bracket.
c
b
a

MAP Sensor Installation

1. Install the sensor onto the bracket.
2. Connect the hose to the sensor.
3. Connect the engine harness connector to the sensor.
4. Secure the harness connection with a cable tie.

Oil Level Sensor

NOTE: The oil level sensor is not present on all models.
The oil level sensor is immersed into the oil sump. It acts as an electronic dipstick, sensing the level of the oil in the sump.
When the oil level is low, the propulsion control module (PCM) sets a fault and notifies the boat operator to check the oil level.
90-8M0146617 eng JULY 2018
A1
YEL
D2
125A
E3
BLK/GRN
124A
PPL/BLK
E4
H4
Pin
A
B C
B
C
65665
91‑892647A01
Bosch P/N MM‑ 46523
PPL/BLK C
YEL
B
BLK/GRN A
67518
Wire Color
Black/green
Yellow
Purple/black
a - Sensor hose
b - Cable tie
c - Engine harness connector
d - Sensor bracket
d
e - MAP sensor
e
66568
© 2018 Mercury Marine
a - Manifold absolute pressure
(MAP) sensor connector
a
b - PCM connector C
Function
Sensor ground C (–)
MAP signal
Sensor power C (+)
Sensors
PCM
CE3
CD2
CE4
Page 5A-27