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Old November 28th, 2021, 06:10 PM   #41
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

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MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by shspvr View Post
The gray wire is now on a direct 12v source
I still think resistor is the wrong one so there for it sent the incorrect voltage
wanna draw diagram of how this would be the case? Why would higher-resistance resistor send higher voltage than lower-resistance stock one?

Here's how it should be. Everything on grey wire is input signal receiving power through ignition-switch +12v source (W wire) through resistor. Other end of grey wire at ignitor is input only, it's not sending out +12v on grey wire.... or is it?



Quote:
Originally Posted by Jeepster1000 View Post
Yes after the swap it acted like there was no resister at all. As far as I know the wiring looks stock and the gray wire is across from one another. I will pick up a resister tomorrow throw that in and see what happens.
This would confirm that grey-wire on ignition-switch is correct anti-theft circuit and is mapped properly to Ignitor's ignition-switch sensing line. Some possible non-stock scenarios:

1. grey wire is fed external +12v somewhere along path (parallel circuit). Inspect grey wire from Ignitor connector and trace all way back to bottom of ignition switch. Is there any additional wires anywhere along path that is feeding it +12v?

2. terminals bridged at connectors between ignition switch and harness. Inspect both sides of connectors between ignition-switch and bike-harness. Verify that ONLY grey wire is connected to terminals on each side and is passed straight-through connectors on each side

3. ignition-switch terminals bridged incorrectly with additional +12v connection to resistor output terminal. This may be possible, however, his earlier test with +6.9v on output terminal of resistor confirms that output power is only delivered through resistor itself.


Suspect #1 may be situation with grey wire being connected to additional +12v source. Can perform these tests:

4. unsolder grey wire from ignition switch completely (be careful not to disturb resistor). Key ON, measure for voltage at free end of grey wire recently disconnected from ign-switch.

5. disconnect ignition switch connector from bike harness. Re-measure voltage at free-end of grey wire

6. back-probe grey-wire at Ignitor connector and see what voltage is there.

7. re-do earlier test of measuring voltage at resistor input terminal #1 and then at output terminal #2. This should be repeat of earlier test with +6.9v at resistor output terminal #2


We have 2 independent variables here: resistor and wiring. Resistor checks out OK as it has been measure to properly send out +6.9v for anti-theft detection. Problem is now to track down why wiring is not delivering that +6.9v to Ignitor correctly.
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