Lexus ES: Diagnosis System
Lexus ES (XZ10) Service Manual / Vehicle Exterior / Sliding Roof / Convertible / Panoramic Moon Roof System / Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Panoramic moon roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
- If the voltage is below 11 V, recharge or replace the battery.
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Sliding Roof or Sli
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Panoramic Moon Roof System DTC No. Detection Item Link B2341 Sensor (Motor) Failure B2342 Switch Failure B2343 Position Initialization
SEE MORE:
DC/DC Converter Voltage Sensor "A"(VL) Stuck On (P1CB59E)
DTC SUMMARY MALFUNCTION DESCRIPTION If an overvoltage malfunction occurs in the boost converter, the motor generator control ECU (MG ECU) detects the malfunction and stores this DTC. The cause of this malfunction may be one of the following: Internal inverter malfunction
Inverter with converter a
EPS Warning Light Circuit
CAUTION / NOTICE / HINT NOTICE:
Perform this troubleshooting procedure when no DTCs are output, including DTCs related to CAN communication system malfunctions.
If the customer reports that the steering feels heavy, refer to the "Heavy steering" item in the Problem Symptoms Table.
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