Lexus ES manuals

Lexus ES: Brake System (P157800)

DESCRIPTION

When a malfunction in the electronically controlled brake system is detected, DTC P157800 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

P157800

Brake System

When the power switch is on (IG) and the dynamic radar cruise control system is operating, a malfunction in the electronically controlled brake system is detected for 0.2 seconds or more.

Electronically controlled brake system

Does not come on

Hybrid vehicle control ECU

PROCEDURE

1.

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

HINT:

If DTC P157800 is output by the dynamic radar cruise control system, perform troubleshooting for the electronically controlled brake system.

Click here

NEXT

END

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DESCRIPTION When the hybrid vehicle control ECU detects that it is not functioning normally, DTC P160700 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Out

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DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) sends signals such as brake request signals to the hybrid vehicle control ECU. When the hybrid vehicle control ECU detect

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 Inspection

INSPECTION PROCEDURE 1. INSPECT AIR FUEL RATIO SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HA1B) - 2 (+B) 20°C (68°F) 2 to 6 Ω 1 (HA1B) - 4 (A1B-) Always 10 kΩ o

 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 rear No. 1 differential mount cushion removal/installation are shown below. Necessary Procedures After

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