67C3K11 7-54123456789Checking the PTT switch1. Check the PTT switch for continuity.Replace if out of specification.È H modelÉ R modelChecking the trim sensor1. Measure the trim sensor resistance.Adjust the trim sensor if out of specifica-tion.NOTE:• Turn the trim sensor lever 1 from a to cand measure the resistance as it graduallychanges.• Position b is the trim sensor lever positionwhen the outboard motor is tilted down. Toadjust the trim sensor cam, see “Adjustingthe trim sensor cam (R model)” (7-32).• The trim sensor resistance will be lower atposition c than at position b.• Range d is the trim and tilt operationrange.Lead colorSwitchpositionSky blue(Sb)Red (R) Lightgreen(Lg)FreeUpDownS67C7110LgSbRLgSbRÈS67C7141Sb RLgLgSbRÉTrim sensor resistance:Pink (P) – Black (B)238.8–378.8 Ω at a9–11 Ω at b (setting resistance)S67C7142BPadbc1PTT electrical system