Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Brake Warning Indicator Always On

Test 1 - 3:




Test 4 - 5:






SYMPTOM
BRAKE WARNING INDICATOR ALWAYS ON

POSSIBLE CAUSES
- Park brake switch
- Brake warning indicator driver circuit short to ground (park brake switch)
- Brake warning indicator (fluid level) switch
- Red brake warning indicator driver circuit short to ground (fluid level switch)
- Instrument cluster
- Powertrain control module