Summary of Fault Correction Possibilities
• Remove the obstruction from the throttle body assembly.
• Correct the wiring problem.
• Replace the throttle body assembly.
ETC_TPSDisagree
Fault Type: Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Critical 7% 331‑6 Yes 4
Explanation
The throttle position sensors do not agree.
Possible Causes
• Wiring problem
• Failed ETC
Summary of Fault Correction Possibilities
• Repair the wiring problem.
• Replace the throttle body assembly.
EncoderFaultCrankCamTrigger
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Critical 100% 1052‑6 Yes 3
Explanation
Either the crankshaft position sensor (CPS) or the camshaft position sensor does not appear to be working properly.
Possible Causes
• Wiring problem
• Defective crankshaft position sensor
• Defective camshaft position sensor
• Mechanical timing problem
Summary of Fault Correction Possibilities
• Correct the wiring problem.
• Inspect the crankshaft position sensor.
• Inspect the camshaft position sensor.
• Correct the mechanical timing problem.
F ..........
FULP_OutputFault
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Critical 100% 3061‑16 Yes 3
Explanation
The fuel pump does not appear to be working properly. The PCM detected a problem when trying to send a signal to the fuel
pump relay.
Possible Causes
• Fuel pump relay wiring problem
• Failed fuel pump relay
Fault Codes
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 4A-19
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