Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Test S: The Shift Up Indicator Is Never/Always On

PINPOINT TEST S: THE SHIFT UP INDICATOR IS NEVER/ALWAYS ON


S1-S4:






Normal Operation
The instrument cluster receives the shift up status from the powertrain control module (PCM) commanding the instrument cluster over the communication network to illuminate the shift up indicator.

Possible Causes
- PCM
- Instrument cluster.