Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2004 >> Freestar V6-3.9L VIN 6 >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test S
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 S

PINPOINT TEST S: THE AUXILIARY TEMPERATURE AND PANEL/FLOOR CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY


Test S1-S2:






Test S2-S4:






Test S4-S6:






Normal Operation
Under normal operation, the panel/floor and cool/warm signal is received by the SJB from the rear auxiliary control through circuit 1121 (DG/YE). Reference voltage for the panel/floor and cool/warm signal resistor is provided by the SJB through circuit 1348 (GY/OG). Ground for the panel/floor and cool/warm signal resistor is provided by the SJB through circuit 1125 (BN).

Possible Causes
- An open, short to ground or voltage in circuit 1121 (DG/YE).
- A short together circuits 1121 (DG/YE) and 1348 (GY/OG) or 1121 (DG/YE) and 1125 (BN).
- Rear auxiliary control.
- SJB.
pro multis · About Operation CHARM