Parts for your 2013 Toyota Land cruiser-Tx valve

2013 Toyota Land Cruiser TX Valve — What it does, and when to replace it

Yes — the 2013 Toyota Land Cruiser (200 Series: URJ202/VDJ200) uses a TX valve (thermostatic expansion valve). Toyota’s Repair Manual for the 200 Series (Air Conditioning section: Cooler Expansion Valve) and the Toyota Electronic Parts Catalogue list a front cooler expansion valve, and on models with rear A/C, a second valve at the rear evaporator. The system is DENSO-based and designed around TXV control rather than an orifice tube.

On this Land Cruiser, the TX valve’s job is to precisely meter refrigerant into the evaporator, maintaining correct superheat so the evaporator runs cold without icing. That lets the A/C stay efficient across different loads — towing up the Range, idling in traffic, or cruising the Desert Road — while protecting the compressor from liquid slugging. If the vehicle has dual A/C, it’ll have a front TXV (in the HVAC case behind the dash/glovebox area) and a rear TXV (usually in the right rear quarter near the rear evaporator).

The TX valve isn’t a scheduled service item, but it can need attention with age or contamination. Common clues it’s unhappy include weak cooling at idle but OK on the move, erratic vent temps, frosty or sweating lines at the firewall or rear quarter, a constant hiss at the case, or pressure readings that suggest the valve is stuck open/closed. Any compressor failure or black-death contamination is a strong cue to replace the TX valve(s) and the receiver/drier (desiccant is often integrated with the condenser), then flush as per the Toyota RM and DENSO procedures.

• Good practice during replacement: renew all sealing O-rings, lubricate with the correct PAG oil (ND-OIL 8 for DENSO systems unless specified otherwise), torque fittings to spec, nitrogen pressure test, deep vacuum, then weigh-in the exact charge.
• Front valve access typically means glovebox/HVAC case access, the rear valve needs right-rear interior trim removal. Expect several hours’ labour, more if the dash carrier needs to come out.
• Always have the system recovered and re-gassed by a licensed A/C technician (ARCtick in Australia, appropriate refrigerant handling licence in NZ). Use genuine Toyota or quality DENSO components for best results.

To keep things sweet: replace the cabin filter regularly, run the A/C year-round, and avoid sealant “stop-leak” products. If there’s any oily residue around A/C joints, get it checked before it turns into a bigger repair.

FAQ: Does the 2013 Land Cruiser use a TX valve or an orifice tube?
It uses a TX valve system. There’s a front expansion valve at the main evaporator, and on dual A/C models, a second valve at the rear evaporator. This is documented in Toyota service information and the EPC for J200 models.

FAQ: How often should the TX valve be replaced?
There’s no fixed interval. It’s replaced when faulty or if the system’s been contaminated (for example, after a compressor failure). If replacing the compressor, it’s smart to replace the TX valve(s) and receiver/drier and carry out a full flush as per the Toyota RM.

FAQ: Where is the TX valve on a 2013 Land Cruiser?
The front TX valve sits at the evaporator in the HVAC case behind the dash/glovebox area. The rear TX valve (if fitted) is mounted near the rear evaporator in the right rear quarter behind interior trim.