Yamaha Outboard Diagnostics: Unraveling the Mysteries

Quick Answer

The cost of Yamaha outboard diagnostics can vary depending on the severity of the issue, the tools and equipment required, and the labor rates charged by the service provider. For basic diagnostic services, such as reading error codes or performing visual inspections, you can expect to pay anywhere from $50 to $150 or more. More complex diagnostics, such as compression testing or fuel system analysis, can cost between $150 and $300 or more. By investing in professional Yamaha outboard diagnostics, you can quickly identify and resolve issues, restoring your engine to peak performance and avoiding costly repairs down the line.

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Introduction

As a boat owner, few things are more frustrating than encountering issues with your Yamaha outboard motor. Whether it’s a sudden loss of power, strange noises, or a complete failure to start, these problems can quickly turn a day on the water into a nightmare. However, with the right approach to Yamaha Outboard Diagnostics, you can unravel the mysteries behind these issues and restore your outboard to peak performance.

Yamaha Outboard Repair: Breaking Down the Costs
Yamaha Outboard Service: Locating Authorized Centers for Professional Assistance

The Importance of Professional Diagnostics

Yamaha outboard motors are highly sophisticated machines, with intricate systems and components working in harmony to deliver reliable power and performance. When something goes wrong, it’s not always easy to pinpoint the root cause, especially for the untrained eye. This is where professional Yamaha Outboard Diagnostics come into play.Experienced marine technicians, armed with specialized tools and diagnostic equipment, have the expertise to quickly identify and troubleshoot even the most complex issues. By leveraging their knowledge and resources, they can save you time, money, and frustration in the long run.

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Common Signs of Trouble

Before diving into the diagnostic process, it’s essential to recognize the common signs that something may be amiss with your Yamaha outboard:

Difficulty starting or failure to start
Loss of power or performance
Unusual noises or vibrations
Overheating
Warning lights or error codes

If you notice any of these issues, it’s crucial to have your Yamaha outboard inspected by a professional to prevent further damage and restore optimal performance.

Diagnostic Service	Average Cost
Basic Diagnostics	$50 – $150+
Complex Diagnostics	$150 – $300+

The Diagnostic Process

When you bring your Yamaha outboard to an authorized service center or marine technician, they will typically follow a structured diagnostic process to identify and resolve the issue:

Visual inspection
Information gathering
Diagnostic testing
Analysis and diagnosis
Repair or replacement

By investing in professional Yamaha Outboard Diagnostics, you can quickly pinpoint the root cause of any issues and take appropriate action to restore your engine to peak performance.

Yamaha Outboard Fault Code List

For your convenience, we’ve compiled the official Yamaha outboard fault codes under one roof:

Fault Code	Description
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 Signal
29	Incorrect Intake Air Pressure Sensor
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	Trim/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

Key:

ETS: Electronic Throttle System
ETV: Electronic Throttle Valve
OCV: Oil Control Valve
MSLPS: Main Station Lever Position Sensor
MTPS: Main Throttle Position Sensor
RCS: Remote Control System
SPS: Shift Position Sensor
SSLPS: Sub Station Lever Position Sensor
SSS: Shift Position Sensor
TPS: Throttle Position Sensor

Disclaimer: This list is for informational purposes only! For more information, please check the official factory manuals.

The Benefits of Authorized Yamaha Service

While it may be tempting to seek out independent or third-party service providers for your Yamaha outboard diagnostics and repairs, there are significant benefits to choosing an authorized Yamaha service center or technician:

Factory-trained expertise
Genuine Yamaha parts and tools
Warranty protection
Comprehensive diagnostics

By having your Yamaha outboard serviced at an authorized center, you can ensure that any issues are properly identified and resolved using the appropriate tools, equipment, and expertise.

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Preventative Maintenance: The Key to Avoiding Problems

While professional Yamaha Outboard Diagnostics are essential when issues arise, the best way to avoid costly repairs and downtime is through proper preventative maintenance. By following Yamaha’s recommended maintenance schedule and having your outboard serviced regularly by authorized technicians, you can help ensure that potential problems are identified and addressed before they become major issues.Regular maintenance tasks, such as oil changes, spark plug replacements, and fuel system inspections, can go a long way in keeping your Yamaha outboard running smoothly and efficiently. Additionally, authorized Yamaha service centers can perform comprehensive inspections and diagnostic checks during routine maintenance visits, helping to catch potential problems early and prevent more significant issues down the line.

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Conclusion

Yamaha outboard motors are precision-engineered machines that require professional care and attention to maintain their performance and reliability. By embracing the power of professional Yamaha Outboard Diagnostics and seeking out authorized service centers, you can unravel the mysteries behind any issues that may arise and restore your outboard to peak performance. With the right approach, you can enjoy many years of trouble-free boating and peace of mind on the water.