Mercury V8 250 User Manual

• Calibrate the DTS system (if equipped).
• Replace the command module.
ETC_Loss_Of_Control
Fault Type: Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Critical 7% 3012‑6 Yes 4
Explanation
The throttle position sensor (TPS) signals indicate that the actual throttle plate position does not match where the PCM thinks it
should be.
Possible Causes
• If this fault was triggered while the engine was in the stall state, the fault was created due to a lack of battery voltage, most
likely due to a battery switch being off while the key was turned to the run position.
• ETC components failed
Summary of Fault Correction Possibilities
• Check the throttle position sensor (TPS) values and throttle % with CDS G3.
• Check the connections and pins at the electronic throttle control (ETC).
• Inspect the ETC wiring for chaffing, opens, or a short.
• Check for obstructions at the ETC plate.
ETC_OutputFault
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Critical 7% 3013‑6 Yes 3
Explanation
The electronic throttle control (ETC) does not appear to be working properly.
Possible Causes
• If this fault was triggered while the engine was in the stall state, the fault was created due to a lack of battery voltage, most
likely due to a battery switch being off while the key was turned to the run position.
• ETC components failed
Summary of Fault Correction Possibilities
• Check the throttle position sensor (TPS) values and throttle % with CDS G3.
• Check the connections and pins at the electronic throttle control (ETC).
• Inspect the ETC wiring for chafing, opens, or a short.
• Check for obstructions at the ETC plate.
ETC_Sticking
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Critical 7% 3014‑6 Yes 4
Explanation
The electronic throttle control (ETC) does not appear to be working properly.
Possible Causes
• Obstruction in the throttle body assembly
• Wiring problem
• Defective ETC
Fault Codes
Page 4A-18 © 2018 Mercury Marine 90-8M0146617 eng JULY 2018

Mercury V8 250 Specifications

General

Brand	Mercury
Model	V8 250
Category	Outboard Motor
Language	English