Automatic Diagnostic

From R31 Skyline Club Wiki

S1/2 Automatic Transmission Diagnostic[edit]

Nothing yet.

S3 Automatic Transmission Diagnostic[edit]

-Start the engine and warm it to normal temp

-Turn it off

-Ensure power button is off

-Put selector in "park"

-Turn key to on but don't start it

-P/shift lamp should come on for 2 seconds

-Turn key to off position

-Put selector in drive

-Turn power shift on

-Turn key to on but don't start

-Put selector into 2nd

-Turn p/shift off

-Move selector into 1st

-Turn p/shift on

-Press the accelerator to the floor and release it

-Check the p/shift lamp for diagnostic


If all flicker lengths are the same, then it confirms that all circuits are ok.

1st flicker - revolution sensor circuit

2nd flicker - speed sensor circuit

3rd flicker - throttle sensor circuit

4th flicker - shift solenoid A circuit

5th flicker - shift solenoid B circuit

6th flicker - over run clutch solenoid circuit

7th flicker - lock up solenoid circuit

8th flicker - fluid temp sensor or automatic transmission power circuit is damaged

9th flicker - engine revolution signal circuit

10th flicker - line pressure solenoid circuit

If all flickers are on for a time of 1 second each - battery is low, or wrongly connected, or has been off for a long time.


Compiled by: skyline89