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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Automatic Temperature Control (ATC) Back Lighting Inoperative

Test 1 - 4:




Test 5:






SYMPTOM
AUTOMATIC TEMPERATURE CONTROL (ATC) BACK LIGHTING INOPERATIVE

POSSIBLE CAUSES
- Instrument cluster DTC(s) present
- Body control module (BCM) DTC(s) present
- Automatic temperature control (ATC)
- Inoperative bulb(s)
- Panel lamps driver circuit open
- Instrument cluster (EMIC)