All Functions Of Keyless Entry Do Not Work

Inspect the following circuits:

• ECU Power Source Circuit. Go to TEST 1 .
• Door Courtesy Switch Circuit. Go to TEST 6 .
• Door Key Lock & Unlock Switch Circuit (Unlock Side). Go to TEST 3 .
• Door Key Lock & Unlock Switch Circuit (Lock Side). Go to TEST 4 .
• Key Unlock Warning Switch Circuit. Go to TEST 5 .
• Wireless Door Lock ECU. See PIN VOLTAGE TESTS . Replace as necessary.