Code Displayed | Location | Type of Fault | Possible causes / Action |
DDU | Info Centre |
BLANK | BLANK | No supply on ignition switched line | | Fuse blown. DDU / INFO CENTRE or cable fault. Open circuit B - |
SENSOR BAR | SENSOR BAR | | | Bar displayed = Sensor output O.K.Bar not displayed = Sensor output too low |
00 | OK 00 | N/A | No faults | System fully operational. No faults detected |
01 | S1A 01 | Sensor 1A or wiring open or short circuit | Sensor output loss | Sensor connector loose, cable damaged or sensor faulty |
02 | S1B 02 | Sensor 1B or wiring open or short circuit |
03 | S2A 03 | Sensor 2A or wiring open or short circuit |
04 | S2B 04 | Sensor 2B or wiring open or short circuit |
05 | S3A 05 | Sensor 3A or wiring open or short circuit |
06 | S3B 06 | Sensor 3B or wiring open or short circuit |
07 | OK 07 | System O.K. but all sensors have no output | Drive above 6mph (10km/h), sensor bars will appear if sensors are O.K. |
08 | RET 08 | Retarder relay or wiring open circuit | |
09 | RET 09 | Retarder relay or wiring open circuit | |
OA | RIDE OA | Reset to ride / wiring open circuit | |
OC | RIDE OC | Reset to ride / wiring open circuit | |
OE | LAMP OE | Warning lamp circuit fault | |
11 | S1A 11 | Sensor 1A, low output | Low sensor output group | Sensor worn, sensor connector loose, poorly adjusted sensor, wiring open or short circuit, short across conductors in cable |
12 | S1B 12 | Sensor 1B, low output |
13 | S2A 13 | Sensor 2A, low output |
14 | S2B 14 | Sensor 2B, low output |
15 | S3A 15 | Sensor 3A, low output |
16 | S3B 16 | Sensor 3B, low output |
20 | EXC 20 | Incorrect exciter ring fitted | Exciter group | Check teeth on exciter ring (i.e. 80 tooth instead of 100 tooth and vice versa) |
21 | S1A 21 | Sensor 1A, intermittent low output | Intermittent low sensor output group | Loose or incorrectly adjusted sensor, sensor connector loose, bracket or exciter ring loose, damaged exciter ring, worn sensor cable insulation |
22 | S1B 22 | Sensor 1B, intermittent low output |
23 | S2A 23 | Sensor 2A, intermittent low output |
24 | S2B 24 | Sensor 2B, intermittent low output |
25 | S3A 25 | Sensor 3A, intermittent low output |
26 | S3B 26 | Sensor 3B, intermittent low output |
37 | EXT 37 | Diagnostic code sent to ABS ECU to activate multiple light sequence | | |
40 | XSEn 40 | Sensor wiring crossed across an axle | Sensed wheel slow recovery group | Slow brake release, check foundation brake for mechanical faults, dry bearings, broken springs, restricted piping. Check for kinks and blockages etc. Check for incorrectly wired sensors and modulator solenoids, incorrect piping or modulator fault |
41 | SLW 41 | Slow recovery of sensed wheel(s): red channel |
42 | SLW 42 | Slow recovery of sensed wheel(s): blue channel |
43 | SLW 43 | Slow recovery of sensed wheel(s): yellow channel |
61 | RDHd61 | Red channel, hold solenoid or wiring | Open circuit solenoid or wiring | |
62 | BUHd62 | Blue channel, hold solenoid or wiring | |
63 | YEHd63 | Yellow channel, hold solenoid or wiring | |
67 | RDDu67 | Red channel, dump solenoid or wiring | |
68 | BUDu68 | Blue channel, dump solenoid or wiring | |
69 | YEDu69 | Yellow channel, dump solenoid or wiring | |
71 | RDHd71 | Red channel, hold solenoid or wiring | Short circuit modulator solenoid or wiring | |
72 | BUHd72 | Blue channel, hold solenoid or wiring | |
73 | YEHd73 | Yellow channel, hold solenoid or wiring | |
77 | RDDu77 | Red channel, dump solenoid or wiring | |
78 | BUDu78 | Blue channel, dump solenoid or wiring | |
79 | YEDu79 | Yellow channel, dump solenoid or wiring | |
80 | SOL 80 | Poor insulation is solenoid or wiring | Solenoid wiring short to B+ or low sol. resistance | |
81 | RDHd81 | Hold solenoid, red channel | |
82 | BUHd82 | Hold solenoid, blue channel | |
83 | YEHd83 | Hold solenoid, yellow channel | |
87 | RDDu87 | Dump solenoid red channel | |
88 | BUDu88 | Dump solenoid blue channel | |
89 | YEDu89 | Dump solenoid yellow channel | |
90 | B+LO 90 | ECU supply voltage <18V (<9V on 12V system) when solenoid energised | Supply voltage group | |
91 | ISOI 91 | Faulty supply from ISO 7638 Pin 1 or fuse blown | |
92 | B+HI 92 | ECU supply voltage >32V (<16V on 12V system) | |
93 | ECU 93 | Internal ECU fault | |