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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 452 (Engine Controls - Self-Diagnostics - 6.0L Bi-Fuel & CNG) >> Diagnostic Trouble Code Definitions

Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Diagnostic Trouble Code Definitions listed in the DIAGNOSTIC TROUBLE CODE DEFINITIONS  table apply to Bi-Fuel & CNG vehicles only. For all other Diagnostic Trouble Code Definitions, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - 4.8L, 5.3L & 6.0L "C", "K", "N", "S" & "T" SERIES - FLEX FUEL & GASOLINE article.
NOTE: Use of Tech 2 or generic OBD-II scan tool is required to retrieve DTCs. Refer to user reference manual supplied with scan tool.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Definition (2) Code Type
P0005  Fuel Shutoff Valve "A" Control Circuit/Open N/A
P0148  Fuel Delivery Error N/A
P0171 (3) Fuel Trim System Lean - Bank 1 B
P0172 (3) Fuel Trim System Rich - Bank 1 B
P0174 (3) Fuel Trim System Lean - Bank 2 B
P0175 (3) Fuel Trim System Rich - Bank 2 B
P0182  Fuel Tank Temperature Sensor Circuit - Low Voltage C
P0183  Fuel Tank Temperature Sensor Circuit - High Voltage C
P0187  Fuel Rail Temperature Sensor Circuit - Low Voltage C
P0188  Fuel Rail Temperature Sensor Circuit - High Voltage C
P0191  Fuel Rail Pressure Sensor Circuit Performance N/A
P0192  Fuel Rail Pressure Sensor Circuit - Low Voltage B
P0193  Fuel Rail Pressure Sensor Circuit - High Voltage B
P0200  Injector Control Circuit Voltage B
P0300  Random/Multiple Cylinder Misfire Detected B
P0611  Fuel Injector Control Module Performance N/A
P1020  Incorrect Voltage On A CNG Fuel Injector Control Circuit N/A
P1021-P1028  Incorrect Voltage On A CNG Fuel Injector Control Circuit N/A
P1204  Vehicle Does Not Start On CNG N/A
P1207  Fuel Rail Pressure Output PWM Signal Not Received By PCM N/A
P1209  FICM Diagnostic Output PWM Signal Not Received By PCM N/A
P1432  Fuel Tank Pressure Sensor Signal Low C
P1433  Fuel Tank Pressure Sensor Signal High C
P2146  Incorrect Voltage Detected - Command State Of AFO Enable Circuit N/A
P2665  Incorrect Voltage Detected - Low Pressure Lock-Off Solenoid N/A
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) See CODE TYPES  under ON-BOARD DIAGNOSTICS.
(3) This DTC may also set during gasoline operation.