Test D: C1267

D: C1267-Modulator valve failure

D1: CHECK CONDITION OF FUSE
1. Check fuse located in underbonnet fusebox, fuse 16.
^ Is the fuse OK?

-> Yes
Go to [D2]

-> No
Replace fuse.

D2: MEASURE CONNECTOR VOLTAGE
1. Disconnect connector LF037. Measure the voltage between pins 25 and 24.
^ Is the voltage approximately 12 volts?

-> Yes
Replace HCU.

-> No
Go to [D3]

D3: INSPECT HARNESS/CONNECTORS
1. Inspect harness/connectors from ABS module to fusebox for damage / corrosion, bent / pushed back pins.
^ Is damage found?

-> Yes
Repair as necessary.

-> No
Replace HCU.