Operation CHARM: Car repair manuals for everyone.
Home >> Lincoln >> 2005 >> LS V6-3.0L DOHC VIN S >> Repair and Diagnosis >> Windows and Glass >> Windows >> Testing and Inspection >> Pinpoint Tests >> Test H: The Defrost System Does Not Shut Off Automatically
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

Test H: The Defrost System Does Not Shut Off Automatically

PINPOINT TEST H: THE DEFROST SYSTEM DOES NOT SHUT OFF AUTOMATICALLY


H1-H5:






H5 Continued:






Normal Operation
The heated rear window relay coil stays grounded by the REM for approximately 10 minutes, after which the REM removes the ground to circuit 91S-HB23 (BN/WH), thereby opening the heated rear window relay. This disconnects the voltage from circuits 15S-DA13 (GN/YE)/15S-HB19 (GN/BU), which powers the heated rear window.

Possible Causes
- circuit 91S-HB23 (BN/WH) short to ground
- circuits 15S-DA13 (GN/YE), 15S-HB19 (GN/BU) short to voltage
- heated rear window relay
- REM
- DATC module
pro multis · About Operation CHARM