Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

Lighting system

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	Detection Item	Trouble Area
B1244	Light Sensor Circuit Malfunction	Automatic light control sensor Wire harness Driver side junction block ECU
B1268	Back-up Communication Bus Malfunction	Driver side junction block ECU Luggage room junction block ECU Turn signal switch (Combination switch) Wire harness
B2402	Transistor Relay Overload Malfunction	Wire harness Luggage room junction block ECU
B2403	Transistor Relay Overhead Malfunction	Wire harness Luggage room junction block ECU
B2412	Headlight Swivel Motor LH Malfunction	Headlight swivel actuator LH Wire harness AFS ECU
B2413	Headlight Swivel Motor RH Malfunction	Headlight swivel actuator RH Wire harness AFS ECU
B2414	Steering Position Sensor Malfunction	Steering sensor Wire harness AFS ECU
B2415	Vehicle Speed Sensor Malfunction	Skid control ECU Multiplex communication system AFS ECU
B2416	Height Control Sensor Malfunction	Height control sensor Wire harness AFS ECU
B2417	Headlight Beam Level Control Motor LH Malfunction	Headlight beam level control motor LH Wire harness AFS ECU
B2418	Headlight Beam Level Control Motor RH Malfunction	Headlight beam level control motor RH Wire harness AFS ECU
B2419	BEAN Communication Malfunction	Multiplex communication system Wire harness AFS ECU
B2420	AFS ECU Malfunction	AFS ECU