The following is a list of fault codes refering to the ABS system on the P11 Primera 1996 - 1999. These fault codes, should they arise are stored in the cars ECU and can be read at your garage or with a Datacable and Scan software.

Fault code	Fault location
12	At start of the sequence (Primera). No fault is found (Almera)
18	The rotor of the sensor
21	Open circuit in front right hand wheel speed sensor.
22	Short circuit in front right hand wheel speed sensor.
25	Open circuit in front left hand wheel speed sensor.
26	Short circuit in front left hand wheel speed sensor.
31	Open circuit in rear right hand wheel speed sensor.
32	Short circuit in rear right hand wheel speed sensor.
35	Open circuit in rear left hand wheel speed sensor.
36	Short circuit in rear left hand wheel speed sensor.
41	Front right hand outlet of solenoid valve.
42	Front right hand inlet of solenoid valve.
45	Front left hand outlet of solenoid valve.
46	Front left hand inlet of solenoid valve.
51	Rear right hand outlet of solenoid valve.
52	Rear right hand inlet of solenoid valve.
55	Rear left hand outlet of solenoid valve.
56	Rear left hand inlet of solenoid valve.
57	Low supply voltage.
61	The hydraulic pump or relay.
63	The system relay.
71	The ECU (Electronic control unit)