Uploaded February 2022 | Updated September 2026, 2 weeks ago
In this video we troubleshoot and start the repair process for a 2001 Polaris Expedition 425 Speedometer. This belongs to a friend and it is interesting how this works. After looking into these, It seems to be a common failure on them for running them with a bad battery or no battery. It seems the voltage charge regulator may cause issues with the internals of the speedo. Another bad deal with no speedo is that the four wheel drive enable comes from this speedo as well to make sure the vehicle is at zero speed before shifting. I share in this video how helpful the site was for KA7OEI's blog in helping me identify the burnt resistor on this board. The site has lots of help on these and I highly suggest checking it out if you are having the same issues. I will try my best to go further with this repair and see if we can still get this one back going after 7 components at this time, we still have more failed components to go. I will post a part 2 of this speedo repair as long as the Main Microcontroller is not dead. Hope you find this video helpful and thanks for watching!
Amazon Affiliate links to some of my favorite Tools/Items if interested:
Any links you click on helps support the Channel and I greatly appreciate it!
Link to Lot of MPS A42 if needed:
amzn.to/3JjT4bf
Link to Zener Diode kit if needed:
amzn.to/3uBZpdY
Link to CS4121 Driver Chip if needed:
amzn.to/3GvYEoY
Amazon Link to 470uf 25V Caps
amzn.to/3Hytgrc
DeWalt Cordless Gyroscopic Screwdriver if needed: amzn.to/3Eevk8f
TOMLOV DM202 MAX Microscope if needed: amzn.to/3Uy0RIF
TOMLOV DM201M with built in DMM if needed: amzn.to/3mnLXZz
Cheap Spot Welder Board if needed: amzn.to/3WcRwWA
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Weller 200W Iron if needed: amzn.to/30nzhT2
Hakko 888D Iron if needed: amzn.to/36TDWyv
Conical Bent Hakko Tip if needed: amzn.to/3B57IjD
ProStormer Hot Air Station if needed: amzn.to/3XIiKEY
Desoldering Gun if Needed: amzn.to/2SOTVIM
Extra Long Security bits if needed: amzn.to/3KVQNGQ
0-60V 0-5A Power Supply if needed: amzn.to/4158YzL
Similar to Drok DC-DC Converter if needed: amzn.to/3eUJZYk
Jewelers Screwdriver set if needed: amzn.to/3THDqwd
OFLA Locking Blade knife if needed: amzn.to/3BxMbSO
Pair of 3S 5.2Ah 60C LiPo batteries with XT-60 Connectors if needed: amzn.to/3UAl40e
WD-40 Contact Cleaner (Plastic Safe): amzn.to/2Yjo6e5
FlirOne USB C if needed: amzn.to/36VX1jn
Rigol DS1102E Scope if needed: amzn.to/35UVLvI
Atlas ESR-70 if needed: amzn.to/2QR1z4W
150W Load Tester if needed: amzn.to/30i8sn8
M12 Cordless Soldering Iron if needed: amzn.to/35XiFCp
Board Holder if needed: amzn.to/3881akA
Flexible hose arms for helping hands if needed: amzn.to/3KSH6c7
Northridge Fix Affiliate Links. Any purchase you make with below links helps support the channel. Thanks for your support!
NF AMTECH NC-559-V2 Flux 10mL if needed:
northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/?ref=thriftytoolshed
NF Low Melt Solder PK of 6 sticks if needed:
northridgefix.com/product/low-melt-solder-pack-of-6-sticks/?ref=thriftytoolshed
NF Premium Desolder Braid Wick if needed:
northridgefix.com/product/premium-desolder-braid-wick-10ft-length/?ref=thriftytoolshed
NF Dual Head ESD Safe Hard Cleaning Brush if needed:
northridgefix.com/product/dual-head-esd-safe-hard-cleaning-brush-for-circuit-boards-and-corrosion-removal/?ref=thriftytoolshed
NF Mechanic Tweezers if needed:
northridgefix.com/product/mechanic-diamond-high-precision-tweezer-non-stick-carbon-coating/?ref=thriftytoolshed
Solder wire 100g 60/40 if needed:
northridgefix.com/product/best-solder-wire-roll-100g-choose-from-0-3mm-and-0-8mm/?ref=thriftytoolshed
NF.Mini Soldering Pen if needed:
northridgefix.com/product/portable-nf-mini-soldering-pen/?ref=thriftytoolshed
NF V2.3 Microscope if needed:
northridgefix.com/product/microscope-camera-bundle-1080-60fps-180x-lens-ring-adapter-2-barlow-lenses-0-5x-0-75x/?ref=thriftytoolshed
NF Universal Board Holder if needed:
northridgefix.com/product/universal-pcb-board-holder-fully-adjustable-jig-fixture/?ref=thriftytoolshed
NF HEPA Fume Extractor smoke absorber if needed:
northridgefix.com/product/hepa-fume-extractor-smoke-absorber-purifier-nf-fume/?ref=thriftytoolshed
NF Atten ST-862D Hot Air Station if needed:
northridgefix.com/product/atten-st-862d-hot-air-station-with-4-nozzles/?ref=thriftytoolshed
NF Grinding Pen with 7 tips if needed:
northridgefix.com/product/grinding-pen-for-traces-repair-chip-grind-cut-hole-7-tips-battery-operated/?ref=thriftytoolshed
In this video we troubleshoot and start the repair process for a 2001 Polaris Expedition 425 Speedometer. This belongs to a friend and it is interesting how this works. After looking into these, It seems to be a common failure on them for running them with a bad battery or no battery. It seems the voltage charge regulator may cause issues with the internals of the speedo. Another bad deal with no speedo is that the four wheel drive enable comes from this speedo as well to make sure the vehicle is at zero speed before shifting. I share in this video how helpful the site was for KA7OEI's blog in helping me identify the burnt resistor on this board. The site has lots of help on these and I highly suggest checking it out if you are having the same issues. I will try my best to go further with this repair and see if we can still get this one back going after 7 components at this time, we still have more failed components to go. I will post a part 2 of this speedo repair as long as the Main Microcontroller is not dead. Hope you find this video helpful and thanks for watching!
Amazon Affiliate links to some of my favorite Tools/Items if interested:
Any links you click on helps support the Channel and I greatly appreciate it!
Link to Lot of MPS A42 if needed:
amzn.to/3JjT4bf
Link to Zener Diode kit if needed:
amzn.to/3uBZpdY
Link to CS4121 Driver Chip if needed:
amzn.to/3GvYEoY
Amazon Link to 470uf 25V Caps
amzn.to/3Hytgrc
DeWalt Cordless Gyroscopic Screwdriver if needed: amzn.to/3Eevk8f
TOMLOV DM202 MAX Microscope if needed: amzn.to/3Uy0RIF
TOMLOV DM201M with built in DMM if needed: amzn.to/3mnLXZz
Cheap Spot Welder Board if needed: amzn.to/3WcRwWA
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Weller 200W Iron if needed: amzn.to/30nzhT2
Hakko 888D Iron if needed: amzn.to/36TDWyv
Conical Bent Hakko Tip if needed: amzn.to/3B57IjD
ProStormer Hot Air Station if needed: amzn.to/3XIiKEY
Desoldering Gun if Needed: amzn.to/2SOTVIM
Extra Long Security bits if needed: amzn.to/3KVQNGQ
0-60V 0-5A Power Supply if needed: amzn.to/4158YzL
Similar to Drok DC-DC Converter if needed: amzn.to/3eUJZYk
Jewelers Screwdriver set if needed: amzn.to/3THDqwd
OFLA Locking Blade knife if needed: amzn.to/3BxMbSO
Pair of 3S 5.2Ah 60C LiPo batteries with XT-60 Connectors if needed: amzn.to/3UAl40e
WD-40 Contact Cleaner (Plastic Safe): amzn.to/2Yjo6e5
FlirOne USB C if needed: amzn.to/36VX1jn
Rigol DS1102E Scope if needed: amzn.to/35UVLvI
Atlas ESR-70 if needed: amzn.to/2QR1z4W
150W Load Tester if needed: amzn.to/30i8sn8
M12 Cordless Soldering Iron if needed: amzn.to/35XiFCp
Board Holder if needed: amzn.to/3881akA
Flexible hose arms for helping hands if needed: amzn.to/3KSH6c7
Northridge Fix Affiliate Links. Any purchase you make with below links helps support the channel. Thanks for your support!
NF AMTECH NC-559-V2 Flux 10mL if needed:
northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/?ref=thriftytoolshed
NF Low Melt Solder PK of 6 sticks if needed:
northridgefix.com/product/low-melt-solder-pack-of-6-sticks/?ref=thriftytoolshed
NF Premium Desolder Braid Wick if needed:
northridgefix.com/product/premium-desolder-braid-wick-10ft-length/?ref=thriftytoolshed
NF Dual Head ESD Safe Hard Cleaning Brush if needed:
northridgefix.com/product/dual-head-esd-safe-hard-cleaning-brush-for-circuit-boards-and-corrosion-removal/?ref=thriftytoolshed
NF Mechanic Tweezers if needed:
northridgefix.com/product/mechanic-diamond-high-precision-tweezer-non-stick-carbon-coating/?ref=thriftytoolshed
Solder wire 100g 60/40 if needed:
northridgefix.com/product/best-solder-wire-roll-100g-choose-from-0-3mm-and-0-8mm/?ref=thriftytoolshed
NF.Mini Soldering Pen if needed:
northridgefix.com/product/portable-nf-mini-soldering-pen/?ref=thriftytoolshed
NF V2.3 Microscope if needed:
northridgefix.com/product/microscope-camera-bundle-1080-60fps-180x-lens-ring-adapter-2-barlow-lenses-0-5x-0-75x/?ref=thriftytoolshed
NF Universal Board Holder if needed:
northridgefix.com/product/universal-pcb-board-holder-fully-adjustable-jig-fixture/?ref=thriftytoolshed
NF HEPA Fume Extractor smoke absorber if needed:
northridgefix.com/product/hepa-fume-extractor-smoke-absorber-purifier-nf-fume/?ref=thriftytoolshed
NF Atten ST-862D Hot Air Station if needed:
northridgefix.com/product/atten-st-862d-hot-air-station-with-4-nozzles/?ref=thriftytoolshed
NF Grinding Pen with 7 tips if needed:
northridgefix.com/product/grinding-pen-for-traces-repair-chip-grind-cut-hole-7-tips-battery-operated/?ref=thriftytoolshed
