Thomas95SC
Registered User
Ok, so I got the code by jumping the pins on the ABS test plug, thanks 96SCbird . Got code 63, Pump Motor Speed Sensor . Did a search but couldn't find anything on it. What is it?
Check resistance on Pins 31 (P) and 49(O/R) with harness disconnected from Controller looking for 5-100 ohms. If none there check at pump same wires.
Check for Voltage on O/Y and ground either body ground or BK wire on connector, with ingition in the KOEO position.
IF good check the ABS Relay.
IF no voltage its either bad wires in harness (pin them out individually) or the controller is bad.
I'm guessing on exact wires since my Service manaul is using a brake out box Pin numbers so I could be wrong but should be good guess. My money is on the ABS relay.
Circuit 57 is ground so it no big deal to check if the pump can operate is to jumper/hot wire Pin 538. 18g wire will be fine, since only need it to see if it will run.
Here's the schematic of the area your working in:
Its a long shot but if pump turns out to be good the fluid level switch might be the cause.