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| Important to do after replacing a clutch. Attesa codesR321 Right front wheel speed sensor or circuit2 Left front wheel speed sensor or circuit 3 Right rear wheel speed sensor or circuit 4 Left rear wheel speed sensor or circuit 5 ABS right front wheel actuator solenoid or circuit 6 ABS front front wheel actuator solenoid or circuit 7 ABS rear wheel actuator solenoid or circuit 8 ABS actuator motor, motor relay or circuit 9 ABS actuator relay or circuit 10 ETS control unit power supply or circuit 11 Fore-and-aft G sensor 1 or circuit 12 Fore-and-aft G sensor 2 or circuit 13 Fore-and-aft G sensor 1, fore-and-aft G sensor 2 14 G sensor power supply 1 or circuit 15 G sensor power supply 2 or circuit 16 Lateral G sensor or circuit 17 Air bleed connector or circuit 18 ETS pressure switch or circuit 19 ETS motor, motor relay or circuit 20 ETS solenoid or circuit 21 Throttle sensor or circuit 22 ETS oil level switch or circuit R33(Vspec and Regular)Self Diagnosis Procedure R33(GTR and Vspec) and R34(GT-R) not Vspec1)Drive vehicle at 30 km/hr for at least 1 minute. Bring vehicle to a full stop. Do not turn off engine. Look at LED at top of control unit (red lamp). Note the number of times it blinks ON and OFF. If two or more systems are malfunctioning, all warning lamps will blink ON and OFF 2) After completing required maintenance procedures, be sure to erase results of self diagnosis testing from memory 3) Once again drive vehicle at 30 km/hr for at least 1 minute. Check that the 4wd warning lamp and ABS warning lamp are off. ATTESA Codes - R33 Regular and Vspec1,5 Front right wheel sensor and circuit 2,6 Front left wheel sensor and circuit 3,7 Rear right wheel sensor and circuit 4,8 Rear left whel sensor and circuit 11,21 Front right inlet solenoid valve and circuit 12,22 Front left inlet solenoid valve and circuit 13,23 Rear inlet solenoid valve and circuit 15,25 Front right outlet solenoid valve and circuit 16,26 Front left outlet solenoid valve and circuit 17,27 Rear outlet solenoid valve and circuit 31,32,33 E-TS solenoid and circuit 34,35,36 E-TS fail safe solenoid and circuit 41,42 ABS actuator relay and circuit 43,44 ABS actuator motor , motor relay and circuit 45,46,77 ET-S/ABS control unit ground and circuit 47,48 E-TS/ABS control unit power supply and circuit 51,52 E-TS actuator motor and circuit 53,54 Pressure switch and circuit 55 Air bleed switch and circuit 56 E-TS oil level switch and circuit 61 FR and RR G sensor 1 and circuit 62 FR and RR G sensor 2 and circuit 63 FR and RR G sensor 1 or 2 and circuit 64 G sensor 1 power supply and circuit 65 G- sensor 2 power supply and circuit 66 Side G sensor and circuit R34(Regular)1,5 Front right wheel sensor and circuit 2,6 Front left wheel sensor and circuit 3,7 Rear right wheel sensor and circuit 4,8 Rear left whel sensor and circuit 11,21 Front right inlet solenoid valve and circuit 12,22 Front left inlet solenoid valve and circuit 13,23 Rear inlet solenoid valve and circuit 15,25 Front right outlet solenoid valve and circuit 16,26 Front left outlet solenoid valve and circuit 17,27 Rear outlet solenoid valve and circuit 31,32,33 E-TS solenoid and circuit 34,35,36 E-TS fail safe solenoid and circuit 41,42 ABS actuator relay and circuit 43,44 ABS actuator motor , motor relay and circuit 45,46,77 ET-S/ABS control unit ground and circuit 47,48 E-TS/ABS control unit power supply and circuit 51,52 E-TS actuator motor and circuit 53,54 Pressure switch and circuit 55 Air bleed switch and circuit 56 E-TS oil level switch and circuit 61 FR and RR G sensor 1 and circuit 62 FR and RR G sensor 2 and circuit 63 FR and RR G sensor 1 or 2 and circuit 64 G sensor 1 power supply and circuit 65 G- sensor 2 power supply and circuit 66 Side G sensor and circuit 75 Throttle position sensor and circuit and sensor How to Erase Self Diagnosis results - R33 - R341) Remove cables from battery terminals. Also remove ETS/ABS control unit connectors. R34 ATTESA E-TS Pro (Vspec)
1. Drive vehicle at approx. 30 km/h for approx. 1 minute 2. Stop vehicle and start diagnosis 3. Turn ignition switch "OFF" 4. Ground the self diagnostic terminal 4
CAUTION KEEP terminal 4 grounded during self diagnosis Do not depress brake pedal (Self diagnosis would not start) Do not start engine (Self diagnosis would not start) 6. After 3 or 4 seconds, ABS warning lamp starts blinking to indicate the malfunction code  Codes 21 Front right wheel sensor (open circuit) 22 Front right wheel sensor (short - circuit) 25 Front left wheel sensor (open circuit) 26 Front left wheel sensor (short circuit) 31 Rear right wheel sensor (short circuit) 32 Rear left wheel sensor (short circuit) 35 Rear left whel sensor (open circuit) 36 Rear left whell sensor (short circuit) 41 Front right outlet solenoid valve and circuit 42 Front right inlet solenoid valve and circuit 45 Front left outlet solenoid valve and circuit 46 Front left inlet solenoid valve and circuit 55 Rear outlet solenoid valve and circuit 56 Rear inlet solenoid valve and circuit 57 Battery voltage 61 ABS actuator motor and motor relay circuit 63 ABS acutuator relay circuit 64 FR & RR G sensor 1 65 FR & RR G sensor 2 66 FR & RR sensor 1 or 2 68 G sensor voltage 69 Side G sensor voltage 71 ATTESA E_TS PRO/ABS control unit and circuit 72 Throttle position sensor 73,74 E-TS/LSD actuator motor 76,77 Pressure switch 78 Air bleed switch 79 Oil level switch 91,92,93 E-TS solenoid 94,95,96 E-TS fail safe solenoid 97,98,99 LSD solenoid Transfercase differences
HKS ETC - Field ETS
 The HKS ETC is used for drag racing, and in order to do a burnout. The Field ETS is used to alter the torque split on the road course.
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