C1473 Engine Trouble Code
What is C1473?
The C1473 check-engine light can indicate issues ranging from minor (loose gas cap) to serious (catalytic converter failure). Professional diagnostic scanning at a dealer or shop will identify the exact cause and required repairs.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Code: | C1473 |
C1473 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
C1473 Code Structure
Understanding what each digit means in the C1473 chassis trouble code:
| C | 1 | 4 | 7 | 3 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | O2 Sensor Heater Circuit Malfunction | Cylinder 10 Contribution/Balance Fault | Exhaust Gas Recirculation Sensor B Circuit High |
How to Fix C1473
Diagnostic Steps:
Check if fuel pump primes when key is turned to ON. Measure fuel pressure and verify bright white-blue spark at all plugs. Also verify mechanical timing alignment.
Repair Solution:
Crankshaft position sensor signals the computer for precise ignition and fuel injection timing. Faulty sensors cause rough running and reduced efficiency. Modern vehicles enter limp mode and illuminate the check-engine light.
Technical Notes:
Parts or components should not be replaced based solely on C1473 DTC. Consult your vehicle service manual for proper diagnostic procedures, possible causes, and required testing before replacement.
C1473 Description
C1473 engine trouble code is related to Exhaust Gas Recirculation Sensor B Circuit High.
Main Cause
The primary reason for C1473 OBD-II Engine Trouble Code is: O2 Sensor Heater Circuit Malfunction.