Mercury V8 300

TPS1_RangeHigh
Fault Type: Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Caution 100% 301‑24 Yes 2
Explanation
The TPS 1 sensor circuit is shorted.
Possible Causes
• Wiring problem
• Defective throttle position sensor
Summary of Fault Correction Possibilities
• Inspect the wiring for problems, and correct as necessary.
• Replace the throttle body assembly.
TPS1_RangeLow
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Caution 100% 301‑25 Yes 2
Explanation
The TPS 1 sensor circuit is open.
Possible Causes
• Wiring problem
• Defective throttle position sensor
Summary of Fault Correction Possibilities
• Inspect the wiring for problems, and correct as necessary.
• Replace the throttle body assembly.
TPS2_ETC_NoAdapt
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Nonsticky Caution 100% 342‑6 Yes 2
Explanation
The TPS 2 signal was outside the valid range when trying to adapt. Adapt occurs upon engine key‑up.
Possible Causes
• Wiring problem
• Defective throttle position sensor
Summary of Fault Correction Possibilities
• Inspect the wiring for problems, and correct as necessary.
• Replace the throttle body assembly.
TPS2_RangeHigh
Fault Type:
Horn: Guardian: UFC: Transmission to Helm: Freeze Frame Priority:
Sticky Caution 100% 302‑24 Yes 2
Explanation
The TPS 2 sensor circuit is open.
Fault Codes
Page 4A-42 © 2018 Mercury Marine 90-8M0146617 eng JULY 2018