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Author Topic: Morpheus check engine light  (Read 214 times)
terry
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« on: March 03, 2021, 10:43:33 PM »

2007 Morpheus, check engine light, code 46, removed battery and had tested (load tested) , reinstalled, upon start up I still have a check engine light, how do I reset?
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sonuvabug
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« Reply #1 on: March 04, 2021, 04:09:46 PM »

I googled Yamaha Morphous Check Engine Light Code 46 and here's part of what I came up with regarding diagnosing the DTC.  

Code 46 appears to be an electrical related code .  In this person's case, his stator was bad. Below is the DTC procedure from the FSM he posted.  Perhaps it'll help you.  To reset the CEL light, make friends with Google.


From the manual:
Fault code No. 46 Symptom Power supply to the FI system relay is not normal.
Used diagnostic code No. – –
Order Inspection operation item and
probable cause
Operation item and countermeasure Reinstatement
method
1 Connected condition of connector
Inspect the coupler for any pins
that may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
ECU coupler
Reinstated by
starting the engine
and operating it at
idle.
2 Faulty battery Replace or charge the battery.
Refer to “CHECKING AND CHARGING THE BATTERY”
in chapter 3.
3 Open or short circuit in wiring harness.
Repair or replace if there is an open or short circuit.
• Between battery and main switch
red – red
• Between main switch and fuse (ignition)
brown/blue – brown/blue
• Between fuse (ignition) and engine stop switch
red/white – red/white
• Between engine stop switch and fuel injection
system relay
red/black – red/black
• Between fuel injection system relay and ECU
red/yellow – red/yellow
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