Manufacturer Code Charts: 11: 11.4
- Set multimeter on 20-volt scale.
- Step on brake pedal.
- Measure voltage between module connector Pin 11 and chassis ground.
- Is the voltage greater than 9 volts?
YES -- Reinstall all connectors.
NO -- Voltage is less than 2 volts. Find and repair open circuit between anti-lock electronic control module connector (Pin 11), and stoplight switch. Reinstall all connectors. Go to 11.5. 11.5