REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTICE: Special caution should be taken when handling each component as they are precise electronic components.

(a) Using a coin or equivalent, open the transmitter case.
NOTICE: Do not forcibly apart the cover.

(b) Remove the discharged transmitter battery by ballpoint pen. Insert the tip of ballpoint pen at the guide groove and lift as shown in the left illustration.
NOTICE:
The terminals may become damaged.
2. INSTALL TRANSMITTER BATTERY

(a) Put a new transmitter battery with positive (+) side up.
Close the transmitter case securely.
NOTICE:
On-vehicle inspectionSymptom confirmation and diagnostic trouble code
HINT:
The diagnostic system in the HIGHLANDER has various functions.
The first function is the Diagnostic Trouble Code (DTC) check. A DTC
is a code stored in the ECU
memory whenever a malfunction in the signal circuits to the ECU occurs. In a
DTC check, a previous
malfunction's DTC ca ...