K2 Check Stoplight Switch

- Connect Rotunda EEC-IV Breakout Box 014-00322 with Anti-Lock Test Adapter T90P-50-ALA or equivalent to the anti-lock 55-Pin connector on the wire harness.

- Turn ignition switch to ON position.

- Measure voltage between breakout box pins 32 and 60.

NOTE: Do not apply brake pedal while performing this test.

- Are there 12 volts?

YES -- Replace stoplamp switch or service cable harness circuit 511.

NO -- Go to K3. K3 Check ABS Function