Rover 800 Jatco Gearbox Self Diagnosis Test. 825 KV6 Auto

Having a Gearbox Problem with your Rover 800 KV6 Auto? or looking to buy a Rover 825 Automatic?

Then you may want to know how to check the Gear Box the easy way. The Jatco Auto Box is fitted with a Electronic Self Diagnosis Test. Easy to check. No tools required.
The 'Sport' mode light will flash any Fault codes found. Continuous flashing equals no fault. If a fault is found the code is displayed by a sequence of flashes. example; A common fault is the inhibitor switch (which is located on top of the gearbox and is attached to the end of the gear selector cable). This results in five flashes quickly followed by another five flashes. Fault code 5-5. Any other faults are shown in a similar way.

The Fault Codes are as follows;


1-1 Vehicle speed sensor 1 (Open or short circuit)
1-3 Engine speed sensor (Open or short circuit)
1-5 ATF temperature sensor (Open)

2-1 Throttle sensor (Open or short circuit)
2-4 Vehicle speed sensor 2 (Open or short circuit)

3-1 Shift solenoid A (Open circuit)
3-2 Shift solenoid B (Open circuit)
3-3 Over-run clutch solenoid (Open circuit)
3-4 Lock-up solenoid (Open circuit)
3-5 Line pressure solenoid (Open circuit)
3-6 Shift lock solenoid (Open circuit)

4-1 Short circuit
4-2 Short circuit
4-3 Short circuit
4-4 Short circuit
4-5 Short circuit
4-6 Short circuit

5-2 Serial communication circuit (Open or short circuit)
5-3 Torque down control circuit (Open or short circuit)
5-4 Vehicle speed sensor 1 & 2 (Open or short circuit)
5-5 Inhibitor switch (Open or short circuit)

6-1 Memory back-up (Open or short circuit)
6-2 Battery supply (Open or short circuit)
6-3 Wrong gear (Open or short circuit)


Then switch your ignition off to exit the test.

To clear the Gear Box memory, you remove the left hand fuse in a bank of 6 fuses under the steering coloumn, for at least five minutes.

Category:

Autos & Vehicles

Tags:

• Rover
• 800
• auto
• automatic
• gearbox
• 820
• 825
• vitesse
• sterling
• coupe
• jatco
• kv6
• v6
• test
• self
• diagnosis
• 2.5
• fastback
• saloon
• 827

[bakbakvini]

my rover 827si have not snow button. how can i make this test?

[asbalna]

@bakbakvini Sorry this feature is just on the 825 that I know of. For 827 and 820 auto's I think you would need the car hooked up to a testbook type unit, so most likely require a garage to test it. sorry.

[asbalna]

Click on the more info link for a full list of the fault codes, thanks.

[bakbakvini]

@asbalna  ok, thanks anyway

[formigalRAMS]

Thank you very much, think it will be very useful. I've just made the faults test in my JATCO (same engine and car) and no faults :D:D

Regards