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Marine Engine Diagnostic System, Yamaha Fault Code List
M.E.D.S. Yamaha Fault Code List
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YAMAHA Outboard Motor Fault Codes


YAMAHA Outboard Marine Engine Fault Codes DTC

 1 - Normal (No Faults)

 13 - Incorrect Pulsar Coil Signal

 14 - Incorrect Crank Position Sensor Signal

 15 - Incorrect Engine Temperature Sensor Signal

 17 - Knock Sensor

 18 - Incorrect Throttle Position Sensor Signal

 19 - Incorrect Battery Voltage

 22 - Incorrect Atmospheric Pressure Sensor Signal

 23 - Incorrect Intake Air Temperature Signal

 24 - EX CAM Position Sensor

 25 - Incorrect Fuel Pressure Signal

 26 - Incorrect Injector Signal

 27 - Incorrect Water in Fuel Signal

 28 - Incorrect Shift Position Switch Signa

 29 - Incorrect Intake Air Pressure Sensorl

 31 - No Tach Signal Output From ECU (OX66)

 33 - Ignition Timing Slightly Corrected due to

 Starting a Cold Engine

 35 - ECU Processing Information (OX66)

 36 - ECU Processing Information (OX66)

 37 - Intake Air Passage (Electronic Throttle Valve)

 or ECU Processing Information (OX66)

 38 - ECU Processing Information (OX66)

 39 - Oil Pressure Sensor

 40 - ECU Processing Information (OX66)

 41 - Overrev Control During Ignition Cutoff Operation (OX66)

 42 - Overheat Control or No Oil Control (OX66)

 43 - Buzzer Sounding (OX66)

 44 - Incorrect Engine Stop Lanyard Switch Signal

 45 - Shift Cut Off

 46 - Overheat Switch

 49 - Over Cooling

 59 - ECM Memory (For Trouble Record Only)

 62 - 98 Low Fuel Pressure

 68 - VCT (S Bank) Starboard Valve Pulley Abnormal Advance

 69 - VCT (P Bank) Port Valve  Pulley Abnormal Advance

71 - S bank IN Starboard IN CAM Position Sensor

 72 - P bank IN Port IN CAM Position Sensor

 73 - OCV (S Bank) Starboard Oil Control Valve

 74 - OCV (P Bank Port Oil Control Valve

 75 - RCS

 76 - RCS

 77 - RCS

 78 - RCS

 79 - RCS

 80 - RCS

 81 - RCS

 82 - RCS

 83 - Tirm/Tilt Angle Sensor

 84 - RCS

 85 - IDM Ioncurrent Detection Module

 86 - Y-COP Immobilizer, Theft Deterrent.

 87 - Remote Control System

 98 - 62 Low Fuel Pressure

112 - ETV ETS (ECM-sub)

113 - ETV ETS (ECM-System)

114 - ETV ETS (ECM-Main)

115 - ETV ETS (Throttle Valve Open)

116 - ETV ETS (Throttle Valve Closed)

117 - ETV ETS (Driving Motor P Short)

118 - ETV ETS (Driving Motor N Short)

119 - ETV ETS (Driving Motor Connector Open)

121 - ETV ETS (Communication Error)

122 - ETV ETS (Driving Motor Heat)

123 - ETV ETS (Driving Motor Relay)

124 - TPS MTPS Open

125 - TPS MTPS Short

126 - TPS Throttle Position Sensor Character Fail

127 - TPS Sub Throttle Position Sensor Open

128 - TPS Sub Throttle Position Sensor Short

129 - ETV MTPS

131 - APS/ETV

132 - APS/ETV

133 - APS/ETV

134 - APS/ETV

135 - APS/ETV

136 - ETV ETS Comm.Error Main

137 - ETV ETS Communication Error Sub

138 - ETV ETS (ECM Main)

139 - ETV ETS (ECM Sub)

140 - ETV

141 - ETV ETS Throttle Position Sensor Voltage

142 - ETV ETS Return Spring

143 - ETV ETS Comm. Error

144 - ETV ETS Low Voltage Mode

145 - ETV ETS Throttle Valve

146 - SPS Main SSS Power Short / Ground Open

147 - SPS Main SSS Power Open / Ground Short

148 - SPS Sub SSS Power Short / Ground Open

149 - SPS Sub SSS Power Open / Ground Short

150 - SPS SSS Character Fail

151 - SPS

152 - SPS

153 - SPS Shift Motor Over Current

154 - SPS Shift Motor Deadlock While Stopping

155 - SPS Shift Motor Deadlock While Operating

156 - Comm. Error 1 Channel Engine remote Connector

157 - Comm. Error 2 Channel Engine remote Connector

160 - MSLPS 1 Main Power Short / Ground Open

161 - MSLPS 1 Main Power Open / Ground Short

162 - MSLPS 1 Sub Power Short/Ground Open

163 - MSLPS 1 Sub Power Open / Ground Short

164 - MSLPS 1 Watching Fail

165 - MSLPS Character Fail

166 - MSLPS 2 Main Power Short / Ground Open

167 - MSLPS 2 Main Power Open / Ground Short

168 - MSLPS 2 Sub Power Short / Ground Open

169 - MSLPS 2 Sub Power Open / Ground Short

170 - MSLPS 2 Character Fail

171 - SSLPS 1 Main Power Short /  Ground Open

172 - SSLPS 1 Main Power Open / Ground Short

173 - SSLPS 1 Sub Power Short / Ground Open

174 - SSLPS 1 Sub Power Open / Ground Short

175 - SSLPS 1 Watching Fail

176 - SSLPS 1 Character Fail

177 - SSLPS 2 Main Power Short / Ground Open

178 - SSLPS 2 Main Power Open / Ground Short

179 - SSLPS 2 Sub Power Short / Ground Open

180 - SSLPS 2 Sub Power Open / Ground Short

181 - SSLPS 2 Character Fail

183 - Station Selector System Fail

184 - Lever Selector System Fail

186 - Sub Station Communication Error

187 - Lever Pickup Abnormal

252 - FC Invalid Code - Engine Overheat