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2002-2005 Range Rover MkIII / L322
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5 Posts
Discussion Starter · #1 ·
Hi
Does anyone know how I can test the transmission inhibitor switch without removing from car?
I have a 3.0 diesel with the gm box.

Any help much appreciated.
 

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LEGACY VENDOR
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2,393 Posts
Because the GM 5L40-E transmission only has 5 solenoids compared with 8 for the ZF 5HP24 it means that there are enough spare pins on the 16-pin electrical connector at the back of the transmission casing to accommodate the connections for the (internal) inhibitor switch rather than requiring a separate connector like the (external) switch on the petrol models.





You will therefore be able to test the switch at this connector or, if it’s easier, at the other end of the wiring loom at the ECU. RAVE shows which pins to take measurements from and the switch logic.



Let me know if anything is unclear.

Phil
 

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Registered
2002-2005 Range Rover MkIII / L322
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5 Posts
Discussion Starter · #3 ·
Thanks for reply.
I will have a try tonight and see if I can test.
I want to make sure the switch is working before I start replacing ews bcm and keys etc.

Many Thanks Andrew.
 
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