Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rear axle hub and bearing assembly on-vehicle inspection are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced (for HV Model:)| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
|
*: When performing learning using the Techstream.
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| Auxiliary battery terminal is disconnected/reconnected | Perform steering sensor zero point calibration | Lane Control System | |
| Pre-collision System | |||
| Parking Support Brake System* | |||
| Lighting System | |||
| Memorize steering angle neutral point | Parking Assist Monitor System | | |
| Panoramic View Monitor System | | ||
| Initialize power trunk lid system | Power Trunk Lid System (for HV Model) | | |
NOTICE:
for HV Model:- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)
CAUTION / NOTICE / HINT
for HV Model:- When removing or installing the rear disc brake caliper assembly, pushing back the disc brake piston may cause a large clearance between the brake pads and brake disc. When the brake pedal is depressed with a large clearance between the brake pads and the brake disc, DTC C1214 related to abnormal brake fluid pressure may be stored. Make sure to clear any DTCs after performing this procedure.
- While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.
HINT:
- Use the same procedure for the RH side and LH side.
- The following procedure is for the LH side.
PROCEDURE
1. PRECAUTION (for HV Model)
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
2. DISABLE BRAKE CONTROL (for HV Model)
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3. REMOVE REAR WHEEL
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4. DISCONNECT NO. 2 PARKING BRAKE WIRE ASSEMBLY
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5. SEPARATE REAR DISC BRAKE CALIPER ASSEMBLY
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6. REMOVE REAR DISC
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7. INSPECT REAR AXLE HUB BEARING LOOSENESS
| (a) Using a dial indicator with magnetic base, check for looseness near the center of the rear axle hub. Maximum Looseness: 0.05 mm (0.00196 in.) NOTICE:
HINT: If the looseness exceeds the maximum, replace the rear axle hub and bearing assembly. |
|
8. INSPECT REAR AXLE HUB RUNOUT
| (a) Using a dial indicator with magnetic base, check for runout on the surface of the rear axle hub outside the rear axle hub bolts. Maximum Runout: 0.05 mm (0.00196 in.) NOTICE:
HINT: If the runout exceeds the maximum, replace the rear axle hub and bearing assembly. |
|
9. INSTALL REAR DISC
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10. INSTALL REAR DISC BRAKE CALIPER ASSEMBLY
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11. CONNECT NO. 2 PARKING BRAKE WIRE ASSEMBLY
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12. INSTALL REAR WHEEL
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13. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL (for HV Model)
(a) Connect the reservoir level switch connector.
(b) Connect the cable to the negative (-) auxiliary battery terminal.
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(c) Turn the power switch on (READY).
(d) Depress the brake pedal and release it.
(e) Clear the DTCs.
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READ NEXT:
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during rea
Components
COMPONENTS ILLUSTRATION *1 NO. 2 PARKING BRAKE WIRE ASSEMBLY *2 REAR AXLE HUB AND BEARING ASSEMBLY *3 REAR AXLE SHAFT NUT *4 REAR DISC *5 REAR DISC BRAKE CALIPER ASSEMBLY *
SEE MORE:
Hybrid/EV Battery Positive and Negative Contactor Actuator Stuck Closed (P0AA073)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a stuck closed malfunction of a system main relay on the positive (+) terminal side and negative (-) terminal side of the HV battery. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH) in
Left Rear Wheel Speed Sensor Internal Electronic Failure (C050C49)
DESCRIPTION When the system is starting up and the skid control ECU (brake actuator assembly) detects a speed sensor circuit malfunction via the speed sensor circuit self-diagnosis function, this DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C050C49 Left R
