P1054 Engine Trouble Code
What is P1054?
P1054 code can indicate a faulty oxygen sensor, which may eventually damage the catalytic converter (repair cost: $2,000–$2,200). Professional diagnosis costs around $200–$210. Oxygen sensors are often straightforward to replace — check your owner's manual for location and instructions. This issue should be addressed promptly to prevent further damage.
Code Information
| Code Type: | OBD-II Powertrain (P) Trouble Code |
| System: | Powertrain |
| Code: | P1054 |
P1054 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
P1054 Code Structure
Understanding what each digit means in the P1054 powertrain trouble code:
| P | 1 | 0 | 5 | 4 |
|---|---|---|---|---|
| Powertrain Code | Fuel And Air Metering | Ambient Air Temperature Sensor Circuit Low | Cylinder 1 Injector Circuit Low | Timing Reference High Resolution Signal A Too Many Pulses |
How to Fix P1054
Diagnostic Steps:
Regarding P1054, carefully inspect the wire harness near the intake manifold bracket, best accessed from below near the oil filter. Look for chafing, pinching, or damaged insulation.
Repair Solution:
Brake switch circuit concerns may involve open or shorted BPP circuits, damaged switches, or misadjustment. Verify stoplight function and follow proper self-test procedures per service manual.
Technical Notes:
P1054 DTC indicating a sensor fault does not always mean the sensor itself is bad. The issue may stem from the systems being monitored or even the sensor wiring. Proper diagnosis is essential.
P1054 Description
P1054 engine trouble code is related to Timing Reference High Resolution Signal A Too Many Pulses.
Main Cause
The primary reason for P1054 OBD-II Engine Trouble Code is: Ambient Air Temperature Sensor Circuit Low.