September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Possible Causes

An open in circuit or 331 (PK/YE).
A short to voltage in circuit 321 (GY/WH), 348 (VT) or 331 (PK/YE).
A short to ground in circuit 331 (PK/YE).
PCM.
(DATC systems) DATC module.
(Manual climate control systems) Function selector switch.
A/C compressor clutch field coil.
A/C control relay.
A/C clutch air gap.