Put new battery in key fob, still doesn't work

Some scan tools can program the fobs but you have to check with different shops. Toyota can do it but it costs.

Below ar some procedures from toyota but no mention of manual programming.

Good Luck
ELECTRICAL
EL008-02
REVISED

December 20, 2002

Title:
WIRELESS TRANSMITTER & PROGRAMMING GUIDE

Models:
All Applicable

TSB REVISION NOTICE :

February 28, 2003: In Wireless Transmitter Identification section Figures 5, 9, 10, 1 2, and 13 as shown are updated to include 2003 model year; Figure 11 updated to include 1999 and 2003 model year.

January 17, 2003: 2003 model year added to Solara in the Application Chart.

The information contained in this TSB supercedes TSB EL010-01, dated October 26, 2001. The previous TSB, EL010-01, should be discarded.

Introduction

Difficulties during Remote Keyless Entry Transmitter Programming can arise due to confusion between Toyota Factory Wireless systems and Toyota Port/Dealer installed systems. This bulletin will assist in identifying the system/correct remote transmitters for each vehicle, and provide the location of the most accurate programming procedure for each system.

Applicable Vehicles All applicable Toyota vehicles.

Warranty Information

System Identification

The table contains all of the necessary information to correctly identify the type of system installed, and where to go to get programming procedures for each vehicle.

NOTE: Should a vehicle having both VIP and Factory systems available (as identified in the following table) be brought in without any remotes (or one non-working remote), use the following tips to help determine which type of wireless system (O.E. Or PIO/PIO) the vehicle has.

Look at the Trim Level of the vehicle. Higher-grade vehicles will tend to have O.E. Systems, while entry-grade vehicles will tend to have VIP For example, the 2001 Camry XLE has Factory RKE, but the LE and CE grades have VIP.

Look for a "Status Monitor" with a glass breakage sensor and an LED externally installed into the dashboard or on the center console. Most VIP systems will have this.

Locate the ECU (refer to the applicable vehicle VIP Manual installation instructions for location). Once located, refer to the part label.

Attempt to perform the factory wireless programming procedure to get a response from the vehicle. Select the "confirmation mode" and see if any "Lock/Unlock" response is received, if so, the vehicle has a factory system.

That is the keyless entry system without immobilizer.
Is your remote control unit (fob) similar to this?

It quit working or never worked?

Proramming procedure.

Locate Keyless Entry System ECU.

TO PROGRAM (ADD) A REMOTE CONTROL TO THE SYSTEM

1. Insert the key into ignition switch, and turn it to "ON.

2. Press and hold the ECU's PROGRAMMING SWITCH for over 2 seconds.
See Fig. 2. The Exterior Lights turn on for 5 seconds.

NOTE: You must perform the next step within 5 seconds.

3. Press and release the REMOTE CONTROL's top or bottom button. See
Fig. 3. The Exterior (Tail and Marker) Lights flash once, then turn off.

4. Turn off the ignition. The system will now operate with the REMOTE CONTROL just programmed.