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Diagnostic Trouble Codes

WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description
B1211/11  Power Window Master Switch ECU Communication Stop
B1214/14 (2) Communication Bus Malfunction (+B Short)
B1215/15 (2) Communication Bus Malfunction (GND Short)
B1241/41  Body ECU Switch Circuit Diagnosis
B1242/42  Wireless Door Lock Tuner Circuit Malfunction
B1244/44  Light Sensor Circuit Malfunction
B1261/61  ECM Communication Stop
B1262/62  A/C ECU Communication Stop
B1269/69  Anti-Theft ECU Communication Stop
B1271 (3) Combination Meter ECU Communication Stop
(1) Four digit B codes are scan tool codes. Two digit codes are open door indicator light codes.
(2) Output of DTC B1214/14 or B1215/15 indicates a short to voltage or short to ground has been identified. Other DTCs may also be output. Always repair DTC B1214/14 or B1215/15 first.
(3) DTC B1271 cannot be output by the open door indicator light because the combination meter controls the open door indicator light.
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