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Friday, December 07, 2007

Nissan Skyline GT-R R32 Attesa codes



Some people like to spell it Attessa. All Nissan's technical information writes it with two T's and one S. I misspelled it for years. Not like I don't' misspell a few words. Attesa is the name of Nissans all wheel drive system that they used in the R32 - R35 Nissan Skyline GT-R/ GT-R . The R32 , R33, and R34 systems are functionally similar. They use a electric powered hydraulic pump to provide ATF to the transfer case to lockup the center differential. The more pressure the system places on the center differential, the more it locks up the center differential. The more the center diff locks up , the more power that goes to the front wheels. The amount of center diff lockup is controlled from inputs from the ATTESA ECU. The ATTESA ECU gets its inputs from the engine ECU, ABS sensors , and a G-sensor.

R32

1 Right front wheel speed sensor or circuit
2 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
24 ETS control unit, ground or circuit

More Attesa information
How to bleed Attesa system.




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