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
Oxygen Sensor Heating Circuit Power Supply, Checking
Heated Oxygen Sensor (HO2S) heating circuit power supply, checking -
Disconnect Heated Oxygen Sensor (HO2S) harness connector at right engine mount.
-
Connect VAG 1527B voltage tester to harness connector using cables from VW 1594 adapter kit.
-
Start engine and let idle.
^
LED must light up
If NOT:
-
Repair short/open circuit using wiring diagram.
