Alright, I had posted my follies on my 4x4 and random dash light issues on another thread but I need to break my issues down a bit further.
2006 trailblazer 4.2, reg wheelbase, 250,000km.
Recently started lighting up like a Christmas tree. Abs and e brake lights came on periodically and now on full time.
As it was suggested, I will be replacing the ignition switch, which should be shipped soon. I pulled the switch out and cleaned some corroded contacts. No change in the abs and e brake light but on start up, the service 4x4 light is on.
Cleaned the under hood and chassis ground under the driver feet. No change in any of the lights.
The 4x4 switch appears to work (I do the suggested workout once in a while). The 2x4 light is illuminated and when I select 4 hi or low, you can hear the TC shift but the indicator light just flashes on the attempted setting. I verified its shifting as the case will go into 4 low.
I intend to pull the disconnect and actuator tomorrow as planned preventative maintenance. If nothing jumps out as corrosion or mechanically stuck, what tests can I conduct without multi meter?
I am hoping to test for a reference signal or voltage change on startup or trying the switch. Hoping to rule out a wiring issue ... thanks for looking.
2006 trailblazer 4.2, reg wheelbase, 250,000km.
Recently started lighting up like a Christmas tree. Abs and e brake lights came on periodically and now on full time.
As it was suggested, I will be replacing the ignition switch, which should be shipped soon. I pulled the switch out and cleaned some corroded contacts. No change in the abs and e brake light but on start up, the service 4x4 light is on.
Cleaned the under hood and chassis ground under the driver feet. No change in any of the lights.
The 4x4 switch appears to work (I do the suggested workout once in a while). The 2x4 light is illuminated and when I select 4 hi or low, you can hear the TC shift but the indicator light just flashes on the attempted setting. I verified its shifting as the case will go into 4 low.
I intend to pull the disconnect and actuator tomorrow as planned preventative maintenance. If nothing jumps out as corrosion or mechanically stuck, what tests can I conduct without multi meter?
I am hoping to test for a reference signal or voltage change on startup or trying the switch. Hoping to rule out a wiring issue ... thanks for looking.