Note:
Control unit terminals for rear axle solenoid valve:
ABS-2E: Ter.
18 and 34
ABS-2EH with
ETC: Intern.
ABS-2EH
without ETC: Intern.
ETC = Electronic Traction Control
For the ABS-2EH, the official Opel/Vauxhall circuit diagrams
designate the control unit terminals for the solenoid valves as inaccessible.
There is, however, a 6-pin oblong plug on the upper side of the hydraulic
modulator (under the cover) which connects the solenoid valves and the
control unit. (Rear solenoid valve: Ter.5 and 6).
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