H3 Check Circuit 31 (BK/R) Output

- Turn ignition switch to OFF position.

- Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent set to ohms, measure resistance between pin 27, circuit 31 (BR/Y) or breakout box instrument panel connector to pin C2-2, circuit 31 (BK/R).

- Is resistance less than 5 ohms?

YES -- Go to H4. H4 Check Anti-Lock Brake Warning Indicator Bulb

NO -- Service circuit 31 (BK/R). Restore vehicle. Retest system.