QT4 Check Warning Indicator With Engine Running

- Start the engine.

NOTE: Certain ABS faults require that the vehicle be driven in order for the anti-lock brake warning indicator to come on. Other faults will cause the anti-lock brake warning indicator to turn on each time the engine is started. Drive the vehicle if necessary.

- Does the anti-lock brake warning indicator illuminate?

YES -- (Retrieve codes using Super STAR II Tester). Indicates a present failure. Proceed to Quick Test Step QT5. QT5 Perform Super Star II Hookup

YES -- (Retrieve codes using NGS). Indicates a present failure. Proceed to Quick Test Step QT6. QT6 Perform New Generation Star (NGS) Hookup

YES -- (Retrieve codes using VOM). Indicates a present failure. Proceed to Quick Test Step QT7. QT7 Perform VOM Hookup

NO -- (Warning indicator not illuminated). Normal operation. If ABS symptom exists, go to Pinpoint Test H1. Pinpoint Tests