Diagnostic Aids

An intermittent may be caused by a poor connection, rubbed through wire insulation or a wire broken inside insulation. Check for:

• Poor Connection Or Damaged Harness

Inspect wiring harness for an open or short to ground in serial data circuit, improper mating, broken locks, improperly formed or damaged terminals, poor terminal-to-wire connection and damaged harness.

• Intermittent Test

Observe ABS data on Tech 1 while moving related connectors and wiring harness. If failure is induced, Tech 1 data will stop updating. This may assist in isolating location of malfunction.