Lexus ES: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Blind Spot Monitor System| DTC No. | Detection Item | Link |
|---|---|---|
| C1A45 | Vehicle Speed Sensor | |
| C1A45 | Vehicle Speed Sensor | |
| C1A46 | Yaw Rate Sensor | |
| C1A46 | Yaw Rate Sensor | |
| C1A47 | Steering Angle Sensor | |
| C1A47 | Steering Angle Sensor | |
| C1AB0 | Short to +B in Outer Mirror Indicator(Master) | |
| C1AB1 | Short to +B in Outer Mirror Indicator(Slave) | |
| C1AB2 | Short to GND in Outer Mirror Indicator(Master) | |
| C1AB3 | Short to GND in Outer Mirror Indicator(Slave) | |
| C1AB4 | Open in Outer Mirror Indicator(Master) | |
| C1AB5 | Open in Outer Mirror Indicator(Slave) | |
| C1AB6 | Blind Spot Monitor Master Module | |
| C1AB7 | Blind Spot Monitor Slave Module | |
| C1AB8 | Destination Information Undefined | |
| C1AB8 | Destination Information Undefined | |
| C1ABB | Blind Spot Monitor Master Module Beam Axis Inspection Incomplete | |
| C1ABC | Blind Spot Monitor Slave Module Beam Axis Inspection Incomplete | |
| C1ABE | Short to GND or Open in Buzzer | |
| C1AC1 | Master Module Horizontal Axis Misalignment | |
| C1AC2 | Slave Module Horizontal Axis Misalignment | |
| U0100 | Lost Communication with ECM / PCM "A" | |
| U0100 | Lost Communication with ECM / PCM "A" | |
| U0125 | Lost Communication with Yaw Rate Sensor Module | |
| U0125 | Lost Communication with Yaw Rate Sensor Module | |
| U0126 | Lost Communication with Steering Angle Sensor Module | |
| U0126 | Lost Communication with Steering Angle Sensor Module | |
| U0129 | Lost Communication with Brake System Control Module | |
| U0129 | Lost Communication with Brake System Control Module | |
| U0142 | Lost Communication with Body Control Module "B" | |
| U0142 | Lost Communication with Body Control Module "B" | |
| U0232 | Lost Communication with Blind Spot Monitor Slave Module | |
| U0233 | Lost Communication with Blind Spot Monitor Master Module | |
| U0293 | Lost Communication With Hybrid Vehicle Control System | |
| U0293 | Lost Communication With Hybrid Vehicle Control System | |
| U1331 | Software Incompatibility with Body Control Module "B" | |
| U1331 | Software Incompatibility with Body Control Module "B" | |
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Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the blind spot monitor system on. (d) Turn the Techstream on. (e) Enter the following me
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever DTCs are detected, the blind spot monitor sensor stores the current vehicle (sensor) state as freeze frame data. CHECK FREEZE FRAME DATA (a) Connect th
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the blind spot monitor system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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System Description
SYSTEM DESCRIPTION DESCRIPTION (a) The power steering ECU (rack and pinion power steering gear assembly) generates the necessary steering assist torque by calculating the steering assist force and controlling the motor current, based on the steering torque information from the torque sensor (rack an
Terminals Of Ecu
TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (a) Disconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors. (b) Measure the voltage and resistance according to the value(s) in t
