aegea traced a stuck roof through stored codes, pump swaps and latch-switch checks. Operation returned after replacing the RVC roof module and tightening a loose latch connection, with the effect of each change left unresolved.
luiher’s blower motor ran on a direct supply, but the regulator connector’s 12.4 V reading collapsed to 0 V with the motor connected. After investigating the fuse supply, the owner reported restoring operation by sanding a bad contact in the part identified as number 11.
C24FUN documents a 1990 964 C2 airbag-warning investigation. After commenters disagreed about whether wakeup should use the K or L line, the author modified the interface and still reported no response from the airbag module on either line.