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
Front A/C - Heater Control Illumination Inoperative -MTC
Test 1 - 3:
Test 4:
SYMPTOM FRONT A/C - HEATER CONTROL ILLUMINATION INOPERATIVE - MTC
POSSIBLE CAUSES -
Check for HVAC DTCs
-
Check for
BCM DTCs
-
A/C - heater control module
-
Panel lamps driver circuit open
-
Body control module - panel lamps driver open