Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble talking to a part that helps control how much air goes into the engine. It's like a walkie-talkie that isn't working right, so the engine might not run smoothly.
The P168A code is triggered when the Engine Control Module (ECM) detects an issue with the throttle position output circuit on Bank 2, indicating an open circuit or a fault in the communication line.
The throttle position sensor (TPS) is responsible for monitoring the position of the throttle in the engine and sending this information to the ECM. An open circuit or fault in the TPS output circuit on Bank 2 can cause improper air-fuel mixture, affecting engine performance.
• Check Engine Light is on
• Poor engine performance
• Hesitation or stalling
• Faulty throttle position sensor
• Damaged wiring or connectors
• Faulty ECM
Throttle Position Sensor (TPS): A sensor that monitors the position of the throttle valve in the engine.
ECM: Engine Control Module, the computer that manages engine performance.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the throttle position sensor for proper operation.
• Replace the faulty throttle position sensor.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Ensure wiring is intact and secure
• Use quality replacement parts
Sensor Issue
• Avoid driving at high speeds until the issue is resolved.
• Consult a professional mechanic if unsure about repairs.
Check with the vehicle manufacturer for warranty coverage on the throttle position sensor and related components.
This code has been associated with throttle position sensor issues in various vehicle models, often due to wear and tear or electrical faults.
Moderate – It is advisable to address this issue soon to avoid potential engine performance problems.
Driving with a malfunctioning throttle position sensor can lead to unsafe driving conditions. Address this issue promptly.
• Engine at operating temperature
• Vehicle in park or neutral
The throttle position sensor is typically located on the throttle body, which is attached to the intake manifold.
Q: Can I drive with a P168A code?
A: It's not recommended to drive for long periods with this code, as it can affect engine performance and safety.
Q: How do I reset the P168A code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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