DTC B1222/22: Driver's Door Lock Control Switch Circuit

Check driver's door lock control switch. See COMPONENT TESTS in BODY CONTROL SYSTEMS - LS400 article. If driver's door lock control switch is okay, check driver's door lock control switch circuit. See CIRCUIT TESTS in BODY CONTROL SYSTEMS - LS400 article. Check driver door key lock and unlock switch. See COMPONENT TESTS in BODY CONTROL SYSTEMS - LS400 article. If driver door key lock and unlock switch is okay, check driver door key lock and unlock switch circuit. See CIRCUIT TESTS in BODY CONTROL SYSTEMS - LS400 article.