All Powertrain Engine DTC Codes — Complete OBD-II Diagnostic Guide (2026)

This comprehensive reference covers every Powertrain Engine diagnostic trouble code (DTC) — 17 codes total. Each code includes what triggers it, common symptoms, step-by-step diagnostic procedures, and repair guidance.

17DTC Codes

2High Severity

13Medium

2Low

Quick Reference — Powertrain Engine Codes

DTC Code	Meaning	Severity	Common Makes
P0010	The P0010 code indicates a problem with the intake camshaft position actuator circuit on bank 1. This actuator helps adjust the camshaft's timing to optimize engine performance. A fault in this circuit can cause engine performance issues and potentially lead to engine damage.	medium	Toyota, Honda, Ford
P0011	The P0011 code indicates that the engine control module (ECM) has detected that the intake camshaft position timing is over-advanced on bank 1. This can cause engine performance issues and potentially lead to engine damage if not addressed. The ECM uses a variety of sensors to monitor engine performance and adjust timing accordingly.	medium	Toyota, Honda, Ford
P0012	The P0012 code indicates that the engine control module (ECM) has detected that the intake camshaft position timing is over-retarded on Bank 1. This means the camshaft is not rotating at the correct time, which can cause engine performance issues. The ECM uses a variety of sensors to monitor the camshaft and crankshaft position, and if the timing is off, it sets this code.	medium	Toyota, Honda, Ford
P0013	The P0013 code indicates a problem with the exhaust camshaft position actuator circuit in bank 1. This code is triggered when the engine control module (ECM) detects an open or short circuit in the actuator circuit. The camshaft position actuator plays a crucial role in adjusting the camshaft timing, which affects engine performance and efficiency.	medium	Toyota, Honda, Ford
P0014	The P0014 code indicates that the engine control module (ECM) has detected that the exhaust camshaft position timing is over-advanced on bank 1. This means the camshaft is rotating too far beyond its optimal position, causing the valves to open and close at the wrong time. The ECM uses a variety of sensors, including the camshaft position sensor and the crankshaft position sensor, to monitor the engine's timing and make adjustments as needed.	medium	Toyota, Honda, Ford
P0016	The P0016 code indicates a timing issue between the crankshaft and camshaft positions in Bank 1. This correlation problem can cause engine performance issues and potentially lead to engine damage if not addressed.	medium	Toyota, Honda, Ford
P0017	The P0017 code indicates that the engine control module (ECM) has detected a correlation issue between the crankshaft and camshaft positions in Bank 1, Sensor B. This can cause engine performance problems, reduced fuel efficiency, and potentially lead to engine damage if left unchecked. The ECM uses sensors to monitor the crankshaft and camshaft positions, and when the signals don't match, it triggers this code.	medium	Toyota, Honda, Ford
P0021	The P0021 code indicates that the engine control module (ECM) has detected that the intake camshaft position timing on bank 2 is over-advanced. This means the camshaft is rotating too far ahead of its normal position, which can cause engine performance issues. The ECM uses a variety of sensors to monitor the camshaft and crankshaft positions, and if it detects a timing error, it will set this code.	medium	Toyota, Honda, Ford
P0521	The PCM has detected that the oil pressure sensor or its circuit is delivering a signal outside the normal range. This usually means the sensor is faulty, the wiring is compromised, or the engine oil pressure truly is low. The code triggers the oil‑pressure warning lamp and may limit engine performance to protect the engine.	medium	Toyota, Honda, Ford
P0522	The powertrain control module (PCM) has detected a low‑voltage signal from the engine oil pressure sensor or switch. This usually points to insufficient oil pressure, a faulty sensor, or damaged wiring.	medium	Toyota, Honda, Ford
P0523	P0523 signals that the PCM is receiving a voltage higher than the calibrated range from the engine oil‑pressure sensor or its switch. The condition usually points to a sensor fault, wiring problem, or a short to voltage in the circuit.	low	Toyota, Honda, Ford
P1259	The P1259 code indicates a malfunction in the Variable Valve Timing and Lift Electronic Control (VTEC) system. This system optimizes engine performance at different RPM ranges. A problem here can lead to reduced engine performance and fuel efficiency.	medium	Honda, Acura, Toyota
P1326	The P1326 code indicates that the engine control module has detected a problem with the connecting rod bearing using the Knock Sensor Detection System (KSDS). This system monitors engine vibrations to detect potential issues. A faulty connecting rod bearing can cause engine damage if not addressed.	high	Toyota, Honda, Ford
P1349	The P1349 code signals a problem with the Variable Valve Timing (VVT) system on Bank 1 of your engine. This system adjusts valve timing for optimal performance, efficiency, and emissions. A malfunction can cause decreased power, fuel efficiency, and increased emissions.	medium	Toyota, Honda, Ford
SYMPTOM-OVERHEATING	The SYMPTOM-OVERHEATING code indicates that your vehicle's engine is overheating. This can be caused by a variety of factors, including low coolant levels, a faulty thermostat, or a malfunctioning cooling fan. If left unchecked, engine overheating can lead to costly repairs or even engine failure.	high	Toyota, Honda, Ford
SYMPTOM-TEMP-GAUGE-HIGH	The SYMPTOM-TEMP-GAUGE-HIGH code indicates that the engine control module has detected a problem with the temperature sensor or gauge, causing it to read high but not actually overheating. This can be due to a faulty sensor, wiring issue, or gauge malfunction. The engine control module uses the temperature sensor to monitor the engine's operating temperature and adjust fuel injection and ignition timing accordingly.	low	Toyota, Honda, Ford
SYMPTOM-WHITE-SMOKE	The SYMPTOM-WHITE-SMOKE code indicates that your vehicle is emitting white smoke from the exhaust. This can be caused by a coolant leak, faulty EGR system, or clogged catalytic converter.	medium	Toyota, Honda, Ford

Detailed DTC Code Guides

P0010: The P0010 code indicates a problem with the intake camshaft position actuator circuit on bank 1. This actuator helps adjust the camshaft's timing to optimize engine performance. A fault in this circuit can cause engine performance issues and potentially lead to engine damage.

medium ⏱️ 30-60 minutes ⚠️ You can drive with a P0010 code, but it's not recommended as it may cause reduced engine performance and potentially lead to engine damage over time.

Learn to diagnose and fix OBD-II code P0010, related to the intake camshaft position actuator circuit on bank 1. Understand causes, symptoms, and repair...

Diagnostic steps:

Check for Obvious Issues
Scan for Additional Codes
Check Camshaft Position Actuator Solenoid
...see all 5 steps →

Detailed DTC Code Guides

Understanding Powertrain Engine Codes

Tools You'll Need for Diagnosis

When to See a Mechanic