KEYLESS ENTRY SYSTEM PRELIMINARY INSPECTION [KEYLESS ENTRY SYSTEM]

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• Perform the following preliminary inspection before troubleshooting.

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Is an after-market system installed? | Yes | Perform troubleshooting according to the after-market keyless entry system manual.
No | Go to the next step.
2 | • Did the customer activate the keyless entry system with the key inserted into the steering lock? | Yes | • Explain to the customer that the system does not work with the key inserted into the steering lock. • Go to the next step.
No | Go to the next step.
3 | The transmitter operation indicator light (LED) illuminates when any operation using the transmitter is performed. | Yes | Go to Step 8.
No | Go to next step.
4 | • Visually inspect the transmitter battery for the following: (See TRANSMITTER BATTERY REPLACEMENT.) ― Battery direction (polarity) ― Battery type (CR1620) ― Corrosion, soiling, deformation of battery terminals (plus/minus terminals). ― Contact malfunction between the battery terminal and battery when battery is inserted • Is there any malfunction? | Yes | Battery insertion direction, battery type problem: • Properly install the battery or replace the battery with a specified one (CR1620), then go to the next step. Battery terminal malfunction: • Clean corrosion and soiling or repair the terminal, then go to the next step.
No | Go to Step 6.
5 | • Does the keyless entry system operate properly? | Yes | Go to Step 8.
No | Go to next step.
6 | Note • Use a new monitor battery (normal battery) or one from another vehicle which operates normally. • Replace the battery in all the transmitters with a monitor-use battery (normal battery). (See TRANSMITTER BATTERY REPLACEMENT.) • For each transmitter, verify that the transmitter operation indicator light (LED) illuminates when a button is operated. • Does operation indicator light (LED) for each transmitter operate? | Yes | Go to next step.
No | If the operation indicator light (LED) does not illuminate, replace the transmitter, then go to Step 11.
7 | Note • Inspect for all transmitters. • Inspect while the batteries for all of the transmitters are replaced with monitor-use batteries (normal battery). • Verify the operation of keyless entry system using all of the transmitters. • Does the keyless entry system operate normally? | Yes | Replace the battery, then go to Step 11. (See TRANSMITTER BATTERY REPLACEMENT.)
No | Go to next step.
8 | • Did the customer activate the transmitter within operative area (Within 1 m {3 ft} from area around vehicle)? | Yes | Go to next step.
| No | The system is normal. Explain to the customer that the system does not work without the system operative area.
9 | • Did the customer use the keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories? | Yes | Attempt to lock/unlock the doors with the transmitter in a non-interference area. If system operates: • Area of operation is suspect. Explain effect of outside interference on the transmitter to the customer. If system does not operate: • Go to the next step.
No | Go to the next step.
10 | • Are any of the following after-market electrical parts on the vehicle? ― Cellular phone ― Radio-wave equipment ― Remote engine starter ― TV | Yes | Disconnect the after-market electrical part connectors and attempt to lock/unlock the doors with the transmitter. If system operates: • The after-market electrical parts are interfering with the keyless entry system. If system does not operate: • Go to the next step.
No | Go to the next step.
11 | • Perform the on-board diagnostic function. (See KEYLESS ENTRY SYSTEM ON-BOARD DIAGNOSIS [KEYLESS ENTRY SYSTEM].) • Does the on-board diagnostic function work? | Yes | Go to the next step.
No | • Go to Step 1 of troubleshooting NO. 1. (See NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM].) • Go to Step 1 of troubleshooting NO. 2. (See NO.2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM].)
12 | • Attempt to reprogram the transmitter ID code. • Can the transmitter ID code be reprogrammed? | Yes | The system is normal.
No | Go to Step 1 of troubleshooting NO. 3. (See NO.3 TRANSMITTER ID CODE CANNOT BE REPROGRAMMED [KEYLESS ENTRY SYSTEM].)