Keyless Entry Transmitter: Testing and Inspection
INSPECTION1. INSPECT WIRELESS DOOR LOCK DIAGNOSTIC MODE
a. Switch to self-diagnostic mode on the intelligent tester.
HINT: This mode checks signal transmission/reception between the door control transmitter, door control receiver and theft warning ECU (theft warning ECU). If all of customer's door control transmitters do not function, it is possible the door control transmitter(s) and/or wire harness is malfunctioning.
1. Switch to self-diagnostic mode on the intelligent tester.
2. Turn the ignition switch ON.
HINT: Please refer to the intelligent tester operator's manual for further details. Do not lock or unlock doors during self-diagnostic mode.
b. Check that the system has switched to self-diagnostic mode by listening to the wireless door lock buzzer. The buzzer should sound according to the illustration.
c. Inspect the diagnosis outputs when the door control transmitter switch is held down (the diagnosis outputs can be checked with the sound of the wireless door lock buzzer).
HINT: If "unmatching recognition code" or "no diagnosis output" is output, inspect the items below.
- Wireless door lock transmitter.
- Door control receiver (inner mirror).
- Wire harness between the door control receiver and theft warning ECU.
2. INSPECT DOOR CONTROL TRANSMITTER ASSEMBLY
a. Inspect operation of the transmitter.
1. Remove the battery (lithium battery) from the transmitter.
2. Install a new or non-depleted battery (lithium battery).
HINT: When a new or non-depleted battery is not available, first connect 2 new 1.5 V batteries in series. Then connect leads to the batteries and use the leads to apply 3 V to the transmitter, as shown in the illustration.
3. From outside the vehicle, approximately 1 m (3.28 ft.) from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch.
OK: The door lock can be operated via the transmitter. The LED lights up more than once.
HINT:
- The operating range differs depending on the user, the way the transmitter is held and the location.
- The transmitter's faint electric waves may be affected if the area has strong electric waves or noise. The transmitter's operating range may be shortened or the transmitter may not function.