4runner/Hilux Surf - Rear window wont go up but when tried warning beeping sounds

[cassidy77]

Ive just been fixing a problem for a friend with their hilux surf which from my understanding is almost the same as the 4runner.
The problem was that when the switch was used or the key on the tail gate turned to raise the tailgate window a beeping sound started but the window didnt go up.

The beeper sounds to indicate that something is not right and it is not safe to raise the window either because one of the following:

• Rear window wiper hasnt returned to the resting position fully (reported as most common reason);
• Tailgate isnt latched properly;
• and in 4runners with the fiber glass canopy their is also a circut to indicate the canopy isnt secured properly.
• Their is a problem with the control module or one of the relays in the module.

So check the following trying to raise the window after checking each:

1. check the window wiper is retracted fully into the stop;
2. check the tailgate is closed properly and give it a good hard close;
3. check the latches - use a screw driver to fully depress the latches into the closed position when the tailgate is down and then try the window, remebering to release the latches with the handle before closing it. If this fixes the problem then something is preventing the latches closing properly when you close the tailgate;
4. If you have the fiberglass canopy check all the bolts are in and they are tight.

If the beeping is still sounding then their is a fault either with one of the switches on the wiper, tailgate latches or the canopy.

Checking the tailgate switches is the easiest so

1. open the tailgate
2. remove the carpet cover on the tailgate
3. remove the metal plate cover
4. fully depress both latches in the closed position
5. put the key in the lock underneath
6. turn the key if the window doesnt go up then
7. unplug the one of the tailgate switches by unplugging either the plug on the very left or right of the tailgate
8. turn the key again, if it works youve found your problem otherwise
9. reconnect the plug and disconnect the other plug
10. turn the key again, if it works youve found your problem
11. otherwise both switches (unlikely) could be faulty disconnect both and turn the key if it goes up then they are both faulty.

If this located the problem then you have a faulty switch in one of the latches and you need to either replace the switch inside or the whole latch assembley. It is probably easier for most to get another latch from the wreckers.

However as a qucik fix keep the faulty latch disconnected and now it will only rely on the other latch to be locked to operate the window.

If your problem is not the tailgate latches their are some other threads in the forum that will help.
Cheers