FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Procedure B - Intermittently Inoperative/Reduced Distance

PROCEDURE B - WIRELESS IS INTERMITTENTLY INOPERATIVE OR HAS REDUCED OPERATING DISTANCE:

1. Review the Transmitter Characteristics and Range section.

2. Check battery capacity (see Battery Capacity Check Procedure).

3. Inspect wireless antenna* (see Wireless Antenna Inspection Procedure).





* This step only applies to key type transmitters (see illustration). Fob type transmitter systems use an internal antenna in the receiver (1995 and later LS 400 and 1996 and later SC 300/400).

4. If a complaint of intermittent operation can be verified, the transmitter is faulty.

5. If a complaint of intermittent operation cannot be verified, check for intermittent sticking of the unlock warning switch using the following method:

a. Insert key in ignition.

b. Turn ignition switch from lock to accessory and back to lock.

c. Remove key.

d. Check remote lock/unlock operation.

e. Repeat steps "a" - "d" at least 10 times.

If remote becomes inoperative during step "d", unlock detection switch or ignition key cylinder is faulty.