Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009SEQUOIA LIMITED, 5.7 Y, RWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWARNING SYSTEMSPARK ASSIST / MONITORINGINTUITIVE PARKING ASSIST SYSTEMPROBLEM SYMPTOMS TABLE
2009 Toyota Sequoia Limited, 5.7 Y, RWD
Problem Symptoms Table
2009 Toyota Sequoia Limited, 5.7 Y, RWDSECTION 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Intuitive Parking Assist System
INTUITIVE PARKING ASSIST SYSTEM
| Symptom | Suspected Area | Reference |
|---|---|---|
| System does not operate at all (Initial check function also does not operate) | Proceed to "Clearance Warning ECU Power Source Circuit" | CLEARANCE WARNING ECU POWER SOURCE CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning indicator indicates front clearance sonar sensor is frozen | Clean the sensor surface | INTUITIVE PARKING ASSIST SYSTEM |
| Proceed to "Front Clearance Sonar Sensor LH Circuit" | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | |
| Proceed to "Front Clearance Sonar Sensor RH Circuit" | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning indicator indicates rear clearance sonar sensor is frozen | Clean the sensor surface | INTUITIVE PARKING ASSIST SYSTEM |
| Proceed to "Rear Clearance Sonar Sensor LH Circuit" | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |
| Proceed to "Rear Clearance Sonar Sensor RH Circuit" | REAR CLEARANCE SONAR SENSOR RH CIRCUIT | |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning indicator indicates back sonar sensor is frozen | Clean the sensor surface | INTUITIVE PARKING ASSIST SYSTEM |
| Proceed to "Back Sonar Sensor LH Circuit" | BACK SONAR SENSOR LH CIRCUIT | |
| Proceed to "Back Sonar Sensor RH Circuit" | BACK SONAR SENSOR RH CIRCUIT | |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning indicator indicates open in rear clearance sonar sensor circuit | Proceed to "Rear Clearance Sonar Sensor RH Circuit" | REAR CLEARANCE SONAR SENSOR RH CIRCUIT |
| Proceed to "Back Sonar Sensor RH Circuit" | BACK SONAR SENSOR RH CIRCUIT | |
| Proceed to "Back Sonar Sensor LH Circuit" | BACK SONAR SENSOR LH CIRCUIT | |
| Proceed to "Rear Clearance Sonar Sensor LH Circuit" | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning indicator indicates open in front clearance sonar sensor circuit | Proceed to "Front Clearance Sonar Sensor LH Circuit" | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT |
| Proceed to "Front Clearance Sonar Sensor RH Circuit" | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| System operates even when vehicle speed is 10 km/h (6.2 mph) or more | Proceed to "Vehicle Speed Signal Circuit" | VEHICLE SPEED SIGNAL CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Although system operates, indicator does not illuminate | Proceed to "Indicator Circuit" | INDICATOR CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Indicator does not dim at night, or illuminates dimly during daytime | Proceed to "Taillight Relay Circuit" | TAILLIGHT RELAY CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Although system operates, clearance warning buzzer does not sound | Proceed to "Clearance Warning Buzzer Circuit" | CLEARANCE WARNING BUZZER CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Clearance warning buzzer volume is low | Adjust volume | ADJUSTMENT |
| Clearance warning ECU | CLEARANCE WARNING ECU | |
| Rear corner and back sonar operates when shift lever is not in R, or does not operate even when shift lever is in R | Proceed to "Park/Neutral Position Switch Circuit" | PARK / NEUTRAL POSITION SWITCH CIRCUIT |
| Clearance warning ECU | CLEARANCE WARNING ECU |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.