626 LX L4-2.0L DOHC (1999)
Power Locks: Testing and Inspection
Keyless Entry System On-Board Diagnosis
There are two functions for the keyless entry system on-board diagnosis (OBD). OBD function 1 tells the keyless control module and CPU to activate the
power door lock and trunk lid opener systems without the transmitter. OBD function 2 monitors a keyless entry demand signal sent from the transmitter
and used inside the keyless control module. OBD function 2 diagnoses the transmitter, integrated antenna and the keyless control module.
On-board Diagnostic Function 1
Before performing troubleshooting, conduct the following procedure.
