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ABS Warning Lamp Flashes Continuously while Ignition Switch Is ON: Troubleshooting

TROUBLESHOOTING CHART

Step Action Yes No
1 Is diagnosis switch terminal connected to ground via service wire?  Go to Step 3. Go to Step 2.
2
  1. Ignition switch ON.
  2. Measure voltage between diagnosis switch terminal and ground.
Is it 10-14 V? 
Substitute a known-good ABS hydraulic unit / control module assembly and recheck. "PNK" wire circuit shorted to ground.
3
  1. Ignition switch ON.
Does flashing of ABS warning lamp indicate DTC? 
Go to Step 7 of "ABS CHECK :". Substitute a known-good ABS hydraulic unit / control module assembly and recheck.