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Old 07-14-2019, 06:07 PM   #5
Board Member
Join Date: Feb 2009
Location: Port Coquitlam

Mitchell manual says bleeding is done with the brake pedal, nothing else.
However (and I take zero responsibility if you fry your entire ABS system).....


Pump Motor Relay

1) With ECU connector still unplugged, turn ignition switch to the "ON" position. Jumper ECU terminal No. 28 to ground.

NOTE: Relay should not remain grounded for more than 2 seconds or damage to relay may occur.

2) Hydraulic Modulator should operate while jumper is installed.

1990 740GL, now in extra-small economy size.
504,000 km so far...
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