Toyota CH-R Service Manual: Problem Symptoms Table

Toyota CH-R Service Manual / Brake System (other) / Brake System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Brake System

Symptom	Suspected Area	Link
Low or spongy pedal	Fluid leaks in brake system	-
	Air in brake system
	Front brake piston seals (worn or damaged)
	Brake master cylinder sub-assembly (faulty)
	Brake booster push rod (adjustment necessary)
	Parking brake actuator O-ring
Brake drag	Brake pedal free play (insufficient)
	Parking brake actuator
	Front disc brake pad (cracked or distorted)
	Rear disc brake pad (cracked or distorted)*1
	Rear disc brake pad (cracked or distorted)*2
	Front brake piston (stuck)
	Front brake piston (seized)
	Vacuum leaks in booster system
	Brake master cylinder sub-assembly (faulty)
Brake pull	Front brake piston (stuck)
	Front disc brake pad (oily)
	Rear disc brake pad (oily)*1
	Rear disc brake pad (oily)*2
	Front brake piston (seized)
	Front disc (scored)
	Rear disc (scored)*1
	Rear disc (scored)*2
	Front disc brake pad (cracked or distorted)
	Rear disc brake pad (cracked or distorted)*1
	Rear disc brake pad (cracked or distorted)*2
Hard pedal but braking inefficient	Fluid leaks in brake system	-
	Air in brake system
	Front disc brake pad (worn)
	Rear disc brake pad (worn)*1
	Rear disc brake pad (worn)*2
	Front disc brake pad (cracked or distorted)
	Rear disc brake pad (cracked or distorted)*1
	Rear disc brake pad (cracked or distorted)*2
	Front disc brake pad (oily)
	Rear disc brake pad (oily)*1
	Rear disc brake pad (oily)*2
	Front disc brake pad (glazed)
	Rear disc brake pad (glazed)*1
	Rear disc brake pad (glazed)*2
	Front disc (scored)
	Rear disc (scored)*1
	Rear disc (scored)*2
	Vacuum leaks in booster system
Noise from brakes	Front disc brake pad (cracked or distorted)
	Rear disc brake pad (cracked or distorted)*1
	Rear disc brake pad (cracked or distorted)*2
	Front brake cylinder mounting bolt (loose)
	Rear brake cylinder mounting bolt (loose)*1
	Rear brake cylinder mounting bolt (loose)*2
	Front disc (scored)
	Rear disc (scored)*1
	Rear disc (scored)*2
	Front disc brake pad support plate (loose)
	Rear disc brake pad support plate (loose)*1
	Rear disc brake pad support plate (loose)*2
	Front brake slide pin (worn)
	Rear brake slide pin (worn)*1
	Rear brake slide pin (worn)*2
	Front disc brake pad (dirty)
	Rear disc brake pad (dirty)*1
	Rear disc brake pad (dirty)*2
	Front disc brake pad (glazed)
	Rear disc brake pad (glazed)*1
	Rear disc brake pad (glazed)*2
	Front brake anti-squeal shim (damaged)

*1: for TMC Made
*1: for TMMT Made

Precaution

PRECAUTION NOTICE: This vehicle is equipped with an SRS (Supplemental Restraint System). Failure to carry out service operations in the correct sequence could cause the SRS to unexpe ...

Vacuum Pump

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