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B1540

Read the instructions below then start the fault diagnostic procedure.

Symptom: ABS warning lamp on, no ABS function.

B1540

Boost pressure control valve, no voltage


Fault symptom

ABS warning lamp on, no ABS function.

Condition




• If three or more valves lack voltage supply.

• If the internal voltage relay is out of order.

• The electronic control module lacks a +30 voltage supply (connector pins 17 and 18).