YotaTech Forums - View Single Post - Help: Do I need to Replace Rear Actuator on 99 4runner Ltd

99SC4Runner · 11-27-2007, 07:43 PM

Okay I have the same problem with the OP of this thread. I tested the fuse and it is good. I applied 12v to the rear actuator the transfer case of my 99 4Runner LTD. I put 12+ to pin 2 and - to pin 3 and it disengages fine. I cycled the polarity between pins 2 and 3 to cycle the actuator into and out of 4WD several times. I started the rig up after I disengaged the rear actuator back into 2WD. I drove it and the front automatic hubs are not locked into 4WD mode and the light does not blink. Then I shifted the transfer case into 4WD HI (not using the M/M button) it comes into 4WD mode fine. I shifted the transfer case lever back into 2HI and the light stays blinking on the dash again.

I had to manually disengage the 4WD again by putting 12v to pin 2 again to put it back into 2WD mode. I don't want to keep doing that every time I need 4WD.

The only thing I haven't found is the solenoid under the dash on the right side of the steering column for the 4WD. ?Where is it located exactly and what does it look like? How do I test the solenoid?

Thanks for the help in advance and this is an awesome site to find out info for troubleshooting

11-27-2007, 07:43 PM	#10 (permalink)
99SC4Runner Registered User Join Date: Apr 2005 Location: Blue Mtns, Eastern Oregon Posts: 226	Okay I have the same problem with the OP of this thread. I tested the fuse and it is good. I applied 12v to the rear actuator the transfer case of my 99 4Runner LTD. I put 12+ to pin 2 and - to pin 3 and it disengages fine. I cycled the polarity between pins 2 and 3 to cycle the actuator into and out of 4WD several times. I started the rig up after I disengaged the rear actuator back into 2WD. I drove it and the front automatic hubs are not locked into 4WD mode and the light does not blink. Then I shifted the transfer case into 4WD HI (not using the M/M button) it comes into 4WD mode fine. I shifted the transfer case lever back into 2HI and the light stays blinking on the dash again. I had to manually disengage the 4WD again by putting 12v to pin 2 again to put it back into 2WD mode. I don't want to keep doing that every time I need 4WD. The only thing I haven't found is the solenoid under the dash on the right side of the steering column for the 4WD. ?Where is it located exactly and what does it look like? How do I test the solenoid? Thanks for the help in advance and this is an awesome site to find out info for troubleshooting __________________ 99 4Runner Limited 4x4, Gen 1 TRD supercharger, complete URD fuel kit, IPT VB trans upgrade, Hayden 1679 tranny cooler, Dual Exhaust from cat back, Deckplate w/ Amsoil filter, Airraid Intake tube, Lotek dual gauge pod with Boost and Tranny temp gauges, 3" ToyTek Front Lift w/ diff drop, OME 891's rear with Monroe air shocks, ARB Sahara front bumper w/ IPT fogs, Warn XD 8000# winch, 265x75R16's Toyo MT Radials on Ivan Stewart TRD wheels, Clear corners, Black Altezza rear lights.