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All Functions Of Keyless Entry Do Not Work

Inspect the following circuits:

ECU Power Source Circuit. Go to TEST 1 .
Ignition Switch Circuit. Go to TEST 2 .
Door Courtesy Switch Circuit. Go to TEST 7 .
Door Key Lock & Unlock Switch Circuit (Unlock Side). Go to TEST 4 .
Door Key Lock & Unlock Switch Circuit (Lock Side). Go to TEST 5 .
Key Unlock Warning Switch Circuit. Go to TEST 6 .
Wireless Door Lock ECU. See PIN VOLTAGE TESTS . Replace as necessary.