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.
RxDoc11_SOH
Fault Type: Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Caution 100% 4010‑6 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.
S ..........
Security_Device_Missing
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky None 100% 4501‑23 No 3
Explanation
The security device is missing or is providing no reading.
Possible Causes
• Device offline
• Wiring problem
Summary of Fault Correction Possibilities
• Inspect the device connectors.
• Inspect the wiring, and repair as necessary.
Security_Locked
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky None 5% 4502‑23 No 4
Explanation
The security device is locked.
Possible Causes
• Device fob incorrect
• Wiring problem
Fault Codes
Page 4A-34 © 2018 Mercury Marine 90-8M0146617 eng JULY 2018