RxDoc7_SOH
Fault Type: Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Critical 100% 4007‑6 Yes 3
Explanation
There is a circuit problem on CAN X.
Possible Causes
• Open or short on CAN X (brown and yellow wires)
• Faulty terminator resistor
NOTE: Resistance across the bottom PCM engine harness pins A31 and A32 and across command module harness pins
6 and 7 should measure 58–60 ohms. Resistance across pins A31 and A32 at the PCM should show approximately 37.1K
ohms. Resistance across the command module pins 6 and 7 should show approximately 37.1K ohms.
Summary of Fault Correction Possibilities
• Repair the open or short on CAN X (brown and yellow wires).
• Replace the terminator resistor.
• Replace the command module.
RxDoc9_SOH
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Critical 100% 4008‑6 Yes 3
Explanation
There is a circuit problem on CAN X.
Possible Causes
• Open or short on CAN X (brown and yellow wires)
• Faulty terminator resistor
NOTE: Resistance across the bottom PCM engine harness pins A31 and A32 and across command module harness pins
6 and 7 should measure 58–60 ohms. Resistance across pins A31 and A32 at the PCM should show approximately 37.1K
ohms. Resistance across the command module pins 6 and 7 should show approximately 37.1K ohms.
Summary of Fault Correction Possibilities
• Repair the open or short on CAN X (brown and yellow wires).
• Replace the terminator resistor.
• Replace the command module.
RxDoc10_SOH
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Critical 100% 4009‑6 Yes 3
Explanation
There is a circuit problem on CAN X.
Possible Causes
• Open or short on CAN X (brown and yellow wires)
• Faulty terminator resistor
NOTE: Resistance across the bottom PCM engine harness pins A31 and A32 and across command module harness pins
6 and 7 should measure 58–60 ohms. Resistance across pins A31 and A32 at the PCM should show approximately 37.1K
ohms. Resistance across the command module pins 6 and 7 should show approximately 37.1K ohms.
Fault Codes
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 4A-33
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