Antilock Brake System

CIRCUIT DIAGRAM

CIRCUIT DESCRIPTION:
This DTC is designed to detect high vehicle voltage levels prior to any required motor movement (initialization or Antilock Brake System (ABS) operation). If excessive voltage exists, demagnetization of the motor magnets may occur, which would eventually affect or eliminate ABS performance.

FAILURE CONDITION:
DTC 37 can only be set if the vehicle's speed is greater than 8 km/h (5 mph). If the switched battery voltage is greater than 17 volts, a malfunction exists.

DIAGNOSTIC AIDS:
An "intermittent" malfunction may be caused by a poor connection, rubbed through wire insulation or a wire that is broken inside the insulation.
The frequency of the malfunction can tee checked by using the entranced diagnostic function of the TECH-1. as described in "Enhanced Diagnostics."
Any circuitry that is suspected of causing the intermittent malfunction should be thoroughly checked for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal-to-wiring connections or physical damage to the wiring harness.