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Low voltage to transfer box, actuator


Andy Wright
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I have a 1996 Hilux Surf, KZN 185. I had a problem with the 4 wheel drive not engaging. I bought a new actuator,vacume solenoid, and ecu. The garage who are repairing it have said there is only 4-5 volts going to the actuator. I gave them the manual for the vehicle, with wiring diagrams, but they said they are the wrong one's. I bought the manual from Rough Trax, and is the only one they supply. Is there another diagram for this model, that someone might have.? They need the correct one to trace the supply,and rectify this problem. Are there any repairers who just specialise, in Surf's who might have the correct diagram.?

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Is it a toyota manual if so does it have the part number it may start with RM

Edit. has the selector fork been inspected ?  what was the initial fault ?

Auto or manual

 

the ADD system and relay will stop it going into 4WD and its a known issue

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It is one of those after market manuals, i think it came from Australia. The garage that has the Surf, said they have got it all working when they apply a power source to the components,eg. actuator, & vacume solenoid. It's only getting 4-5 volts at the actuator, there are 18 wires going into the ECU, they have identified half of them,but the wiring diagram in the manual is different from the wiring on the vehicle. The garage is a 4X4 garage, specialising in Land Rover's, but they repair all makes.

 

                                                                       Thank you for your prompt reply.

                                                                                          Andy.

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i have located a basic diagram but the colours maybe wrong you may have this already

is the 4wd control a green or a black box ?? inside it are 2 relays if these are bad it will pull the voltage down

ADD disconect.pdf

 

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The 4 runner uses the same 4wd control, the colours are wrong but it gives the pinouts for the module

Binder1.pdf

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2 hours ago, flash22 said:

i have located a basic diagram but the colours maybe wrong you may have this already

is the 4wd control a green or a black box ?? inside it are 2 relays if these are bad it will pull the voltage down

ADD disconect.pdf 535.28 kB · 0 downloads

 

 

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Thank you very much for your help, i have printed them, and will take them to the garage tomorrow.

 

                         Thank you very much for your help, i will let you know the outcome.

 

                                                                                       Andy.

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No joy at the garage today, non of the diagrams were compatable with my vehicle. The garage do know what they are doing, and can't understand why there is this problem. I am very close to giving up with it.

 

                       Andy.

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