Module Bias Test
With ignition on, measure voltage between pin No. 4 (Red wire) and engine ground. If observed voltage is less than battery voltage, repair battery feed wire (Red wire) between ignition switch and control module.
With ignition on, measure voltage between pin No. 4 (Red wire) and engine ground. If observed voltage is less than battery voltage, repair battery feed wire (Red wire) between ignition switch and control module.