FixVault
Home
›
Volvo
›
1998
›
S70 Base, Automatic
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/Codes
›
Diagnostic Tests
›
DTC P1621/EFI 666: DTC In Transmission Control Module (TCM)
›
Possible Causes
Possible Causes
One or more DTCs stored in Automatic Transmission Control Module (TCM).