Diagnose by Symptom
Select the symptom your truck is experiencing to find matching fault codes. 110 symptoms indexed across all engine brands.
A
Abs Light On
1 fault codes
All Dash Lights On
1 fault codes
• 1 STOP
All Dash Warning Lights
1 fault codes
• 1 STOP
B
Black Smoke
7 fault codes
• 3 STOP
Black Smoke From Exhaust
1 fault codes
Black Smoke On Acceleration
1 fault codes
Black Smoke Under Acceleration
1 fault codes
Brake Lights Stay On
1 fault codes
C
Check Engine Light
37 fault codes
• 1 STOP
Check Engine Light Intermittent
1 fault codes
Check Transmission Light
1 fault codes
Coolant Boiling
1 fault codes
• 1 STOP
Coolant Light Intermittent
1 fault codes
Coolant Loss
3 fault codes
• 3 STOP
Coolant Smell
1 fault codes
• 1 STOP
Cranking But No Fire
2 fault codes
• 1 STOP
Cranking But No Start
3 fault codes
• 2 STOP
Cruise Control Inoperative
2 fault codes
Cruise Control Overshoots
1 fault codes
Cruise Control Surges
1 fault codes
Cruise Control Won T Disengage
1 fault codes
D
Def Warning
9 fault codes
• 1 STOP
Derate Active
3 fault codes
Derate Countdown
1 fault codes
Derate Pending
1 fault codes
Derate Pending Soon
5 fault codes
Doc Efficiency Low
1 fault codes
E
Egr Flow Insufficient
3 fault codes
Engine Derate
23 fault codes
• 9 STOP
Engine Derate Intermittent
1 fault codes
Engine Dies
4 fault codes
• 3 STOP
Engine Dies Suddenly
4 fault codes
• 3 STOP
Engine Idle Only
1 fault codes
Engine Knock
1 fault codes
• 1 STOP
Engine Misfire
2 fault codes
Engine Noise
1 fault codes
• 1 STOP
Engine Won T Enter Regen Mode
1 fault codes
Erratic Boost Gauge
1 fault codes
Excessive Vibration
2 fault codes
• 1 STOP
F
False Warning
4 fault codes
Fuel Consumption High
1 fault codes
Fuel Consumption Increase
3 fault codes
Fuel Consumption Increased
1 fault codes
Fuel Economy Calculation Wrong
1 fault codes
Fuel Economy Decreased
2 fault codes
Fuel Knock
4 fault codes
• 2 STOP
Fuel Pressure Zero
1 fault codes
• 1 STOP
Fuel Smell
2 fault codes
G
H
Hard Starting When Hot
1 fault codes
Harsh Shifting
1 fault codes
High Exhaust Temperature
3 fault codes
• 1 STOP
High Nox
1 fault codes
High Nox Reading
4 fault codes
I
L
Limp Mode
6 fault codes
• 5 STOP
Loss Of Power
19 fault codes
• 8 STOP
Loss Of Throttle
1 fault codes
Low Coolant Light
1 fault codes
• 1 STOP
Low Coolant Light On But Level Ok
1 fault codes
Low Coolant Warning
1 fault codes
• 1 STOP
Low Oil Pressure
2 fault codes
• 2 STOP
M
Metal Debris In Fuel
1 fault codes
• 1 STOP
Metal In Fuel
1 fault codes
• 1 STOP
Metal In Oil
1 fault codes
• 1 STOP
Metal Shavings In Fuel Filter
1 fault codes
• 1 STOP
N
O
Oil Level Rising
2 fault codes
• 1 STOP
Oil Light
3 fault codes
• 3 STOP
Overheating
4 fault codes
• 4 STOP
Overspeed Warning At Normal Speeds
1 fault codes
P
R
S
Scan Tool Nox Biased
2 fault codes
Scr Dosing Stopped
1 fault codes
Scr Efficiency Low
5 fault codes
Scr Failure
1 fault codes
• 1 STOP
Scr Fault
2 fault codes
Scr Malfunction
3 fault codes
Scr Warning
1 fault codes
Shift Quality Poor
1 fault codes
Speed Limited
2 fault codes
• 1 STOP
Speedometer Bounces
1 fault codes
Speedometer Erratic
1 fault codes
Speedometer Reads High
1 fault codes
Steam From Radiator
2 fault codes
• 2 STOP
T
Tachometer Erratic
1 fault codes
Temp Gauge In Red
2 fault codes
• 2 STOP
Temp Gauge Not Working
1 fault codes
Temp Sensor Implausible
1 fault codes
Tow Required
6 fault codes
• 6 STOP
Transmission Hot
1 fault codes
Transmission Shifts Early
1 fault codes
Transmission Slipping
1 fault codes
Transmission Upshifts Early
1 fault codes
Transmission Won T Shift Out Of Park
1 fault codes
Turbo Actuator Buzz
1 fault codes
Turbo Lag
2 fault codes
Turbo Noise
1 fault codes
Turbo Underboost
6 fault codes
• 3 STOP
Turbo Underboost After Restart
1 fault codes