Automatic Transmission Diagnostics Mode

[Jay95R33]

Found this on another site and thought it would come in handy for anyone with an auto.

Apparently this works on R32's, R33's, maybe R34's and it also worked on my Stagea.

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I have found a diagnostic routine for the auto box on another Nissan site. Most of the diagnostic routines are very similar even though the cars are different models.

So, here it is.

1. Have the car at normal temperature in Park with the overdrive on

2. Start the engine - the power light will go out after 2 seconds

3. Turn the ignition off

4. Move the selector to Drive (you may have to use the push button release)

5. Overdrive off

6. Wait 2 seconds, and turn the ignition on

7. Wait 2 seconds and move the selector to 2

8. Overdrive on

9. Move the selector to 1

10. Overdrive Off

11. Press the accelerator fully and release

12. Hopefully the power light will flash out a series of 10 or 11 flashes.

Here are the auto trans codes.

The sequence starts with one long flash. If everything is OK, this will be followed by ten short flashes.

Errors are indicated by a long flash in the sequence of short flashes.

1st flash longer: revolution sensor shorted or disconected

2nd flash longer: speed sensor shorted or disconected

3rd flash longer: throttle sensor shorted or disconected

4th flash longer: shift solenoid A shorted or disconected

5th flash longer: shift solenoid B shorted or disconected

6th flash longer: overrun clutch solenoid shorted or disconected

7th flash longer: lockup solenoid shorted or disconected

8th flash longer: fluid temperature sensor is disconected or the control unit power source is damaged

9th flash longer: engine revolution sensor shorted or disconected

10th flash longer: line pressure solenoid shorted or disconected

All flashes the same with no long start flash: battery voltage low, has been recently disconected or control unit has just been reconected.

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Also found these codes, but I'm not sure if they are relevant;

Auto Diagnostics

Code Description

111 Inhibitor Switch

112 Vhcl Speed Sen A/T

113 A/T 1st Signal

114 A/T 2nd Signal

115 A/T 3rd Signal

116 A/T 4th Signal

118 Shift Solenoid/V A

121 Shift Solenoid/V B

123 Overrun Clutch S/V

124 Tor Conv Clutch Sv

125 Line Pressure S/V

126 Thrtl Posi Sen A/T

127 Engine Speed Sig

128 Fluid Temp Sensor

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One thing I did notice is that you have to make sure the car (and gearbox) is up to running temps. Remember that the oil may take a longer drive to get up to temp compared to your water temp.

J