Product Manual

For CDS G3 users this means that instead of seeing a fault such as INJ1_OutputFault, the fault will now appear as 201 (Fuel
injector circuit 1), 16 (The ECU has detected a problem when trying to output a signal to this device.).
An active fault list example (actual screen appearance may vary)
a - Fault code (the affected component)
b - Fault type code (how it was affected)
c - Code description
d - Fault code type description
In the last line of this example, component 203, Fuel injector circuit 3, had a fault type 16, meaning that the ECM/PCM is
unable to output a signal to the device. This could indicate a faulty fuel injector, or in this case, where the same fault is affecting
multiple injector and other components, likely indicates a more widespread fault, such as an unplugged harness, issues with a
power supply, or some other systemic issue.
Mercury Universal Fault Code Table (10/15/20)
Refer to the following table for an explanation of faults and possible solutions when using the CDS G3 diagnostic interface tool.
Fault
Code
Type
Code
Code Description Type Description Possible Root Cause
0 0 Fault system The system has no active faults. –
101 16 Ignition circuit 1
The ECU has detected a problem
when trying to output a signal to
this device.
Ignition coil, wire harness, or ECM
failure
201 1 Fuel injector circuit 1
The output signal from the ECU to
the device is open circuit or has
too much resistance.
Faulty fuel injector
202 1 Fuel injector circuit 2
The output signal from the ECU to
the device is open circuit or has
too much resistance.
Faulty fuel injector
300 12
Throttle position sensor
group
The device is disabled due to
conditions present.
Faulty throttle position sensor
407 15
Manifold pressure sensor
barometer reading
The diagnostic performed at key
on has failed.
Faulty TMAP sensor
a
b
c
d
56697
General Troubleshooting
Page 1E-12 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017