4.16
Fuel Systems
Diagnostic Trouble Codes (DTCs)
CFI Diagnostic Trouble Codes
TROUBLE CODE P-CODE
MFD BLINK
C
ODE
DESCRIPTION
Throttle Position Sensor Unrealistic
Transition
P0120
1
TPS signal changes too rapidly to be correct. Can be
caused by faulty connections or a faulty TPS.
Throttle Position Sensor Voltage High P0123
TPS signal is above 4.39 Vdc. Can be caused by a
faulty wire connection or faulty TPS.
Throttle Position Sensor Voltage Low P0122
TPS signal is below 0.7 Vdc. Can be caused by a
faulty wire connection or faulty TPS.
Engine Coolant Temperature Sensor
Voltage High
P0118
2
Sensor signal is above 4.8 Vdc. Can be caused by a
faulty wire connection or faulty temperature sensor.
Engine Coolant Temperature Sensor
Voltage Low
P0117
Sensor signal is below 0.1 Vdc. Can be caused by a
faulty wire connection or faulty temperature sensor.
Intake Air Temperature Circuit Voltage
High
P0113
3
Sensor signal is above 4.9 Vdc. Can be caused by a
faulty wire connection or faulty TBAP.
Intake Air Temperature Circuit Voltage Low P0112
Sensor signal is below 0.19 Vdc. Can be caused by a
faulty wire connection or faulty TBAP.
Barometric Pressure Sensor Voltage High P0108
4
Sensor signal is above 3.23 Vdc. Can be caused by a
faulty wire connection or faulty TBAP.
Barometric Pressure Sensor Voltage Low P0107
Sensor signal is below 1.25 Vdc. Can be caused by a
faulty wire connection of faulty TBAP.
Exhaust Temperature Sensor Circuit
Voltage High
P0546
5
Sensor signal is above 4.9 Vdc for at least 2 minutes
and the engine has been running at or above 3000
RPM.
Exhaust Temperature Sensor Circuit
Voltage Low
P0545
Sensor signal is below 0.06 Vdc for at least 2 minutes
and the engine has been running at or above 3000
RPM.
Detonation Sensor Circuit Voltage High P0328
6
Engine speed is above 6000 RPM and the sensor
signal is above 4.3 Vdc for at least 2 seconds.
Detonation Sensor Circuit Voltage Low P0327
Engine speed is above 6000 RPM and the sensor
signal is below 1.23 Vdc for at least 2 seconds.
Exhaust Valve Solenoid Circuit
Malfunction
P1477 8
Solenoid control circuit is OPEN. Can be caused by
faulty wiring, solenoid, or ECU.
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