For 1990-2009 cars

### No Serial Data From PCM

The PCM and ABS control modele constantly send messages back and forth mainly to activate the traction control system.

### Code Parameters

Code 75 sets if:

No serial data messages have been received by the ABS module from the PCM for seven continuous seconds, and vehicle speed is at least three miles per hour.

Important: Once this code is set, it will remain active for the remainder of the ignition cycle.

The service telltale lamp will be On.

### Diagnostic Aids

When attempting to diagnose an intermittent problem, use the Scan tool to review supplemental diagnostic information. The supplemental data can be used to duplicate a problem.

Select Malf History from scan tool ABS menu.

Intermittents or open suspected to be at the connectors can be detected by using a diagnostic service probe. Voltage can be read on wires without disconnecting any connectors.

Check the tightness of the female terminal grip with a spare male terminal.