Back to DTC Library

POWERTRAIN SYSTEM

Powertrain Trouble Codes

Browse 408 documented trouble codes starting with P in the powertrain subsystem.

Catalyst System Efficiency Below Threshold (Bank 1)

System Too Lean (Bank 1)

Random or Multiple Cylinder Misfire Detected

Cylinder 1 Misfire Detected

Cylinder 2 Misfire Detected

Cylinder 3 Misfire Detected

Cylinder 4 Misfire Detected

Cylinder 5 Misfire Detected

Cylinder 6 Misfire Detected

Cylinder 7 Misfire Detected

Cylinder 8 Misfire Detected

Evaporative Emission System Leak Detected (Small Leak)

Evaporative Emission System Leak Detected (Gross Leak)

Coolant Temperature Below Thermostat Regulating Temperature

Catalyst System Efficiency Below Threshold (Bank 2)

Exhaust Gas Recirculation (EGR) Flow Insufficient

Intake Air Temperature Sensor 1 Circuit High Input

O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1)

Camshaft Position Sensor A Circuit Malfunction (Bank 1)

Idle Control System Malfunction

Transmission Control System (MIL Request)

Camshaft Position A - Timing Over-Advanced (Bank 1)

Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

Camshaft Position A - Timing Over-Advanced (Bank 2)

Fuel Rail/System Pressure - Too Low

Mass Air Flow (MAF) Circuit Range/Performance Problem

Mass Air Flow (MAF) Circuit Low Input

Manifold Absolute Pressure (MAP) Sensor Circuit Range/Performance

Throttle/Pedal Position Sensor A Circuit Range/Performance

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

System Too Rich (Bank 1)

System Too Rich (Bank 2)

Injector Circuit Malfunction - Cylinder 1

Injector Circuit Malfunction - Cylinder 2

Injector Circuit Malfunction - Cylinder 3

Injector Circuit Malfunction - Cylinder 4

Injector Circuit Malfunction - Cylinder 5

Injector Circuit Malfunction - Cylinder 6

Knock Sensor 1 Circuit Malfunction (Bank 1)

Crankshaft Position Sensor A Circuit Malfunction

Camshaft Position Sensor A Circuit Range/Performance

Evaporative Emission System Vent Control Circuit Malfunction

Evaporative Emission System Vent Valve/Solenoid Circuit

Evaporative Emission System Leak Detected (Very Small Leak)

Fuel Level Sensor A Circuit High Input

Idle Control System RPM Higher Than Expected

System Voltage Low

Internal Control Module Memory Check Sum Error

ECM/PCM Processor Fault

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

Input/Turbine Speed Sensor Circuit Malfunction

Output Speed Sensor Circuit Malfunction

Torque Converter Clutch Circuit Performance / Stuck Off

OBD Systems Readiness Test Not Complete

Mass air flow (MAF) sensor codes

Mass or Volume Air Flow "A" Circuit

Mass or Volume Air Flow "A" Circuit High

Mass or Volume Air Flow "A" Circuit Intermittent/Erratic

Manifold absolute pressure (MAP) / barometric pressure sensor codes

Manifold Absolute Pressure/Barometric Pressure Circuit

Manifold Absolute Pressure/Barometric Pressure Circuit Low

Manifold Absolute Pressure/Barometric Pressure Circuit High

Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent/Erratic

Barometric Pressure Too Low

Intake air temperature (IAT) sensor codes

Intake Air Temperature Sensor 1 Circuit

Intake Air Temperature Sensor 1 Circuit Range/Performance

Intake Air Temperature Sensor 1 Circuit Low

Intake Air Temperature Sensor 1 Circuit Intermittent/Erratic

Intake Air Temperature Too High

Engine coolant temperature (ECT) sensor codes

Engine Coolant Temperature Sensor 1 Circuit

Engine Coolant Temperature Sensor 1 Circuit Range/Performance

Engine Coolant Temperature Sensor 1 Circuit Low

Engine Coolant Temperature Sensor 1 Circuit High

Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic

Throttle / pedal position sensor codes

Throttle/Pedal Position Sensor/Switch "A" Circuit

Throttle/Pedal Position Sensor/Switch "A" Circuit Low

Throttle/Pedal Position Sensor/Switch "A" Circuit High

Throttle/Pedal Position Sensor/Switch "A" Circuit Intermittent

Throttle/Pedal Position Sensor/Switch "B" Circuit

Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance

Throttle/Pedal Position Sensor/Switch "B" Circuit Low

Throttle/Pedal Position Sensor/Switch "B" Circuit High

Throttle/Pedal Position Sensor/Switch "B" Circuit Intermittent

Throttle/Pedal Position Sensor/Switch "C" Circuit

Throttle/Pedal Position Sensor/Switch "C" Circuit Range/Performance

Throttle/Pedal Position Sensor/Switch "C" Circuit Low

Throttle/Pedal Position Sensor/Switch "C" Circuit High

Throttle/Pedal Position Sensor/Switch "C" Circuit Intermittent

Engine warm-up monitor codes

Insufficient Coolant Temperature for Closed Loop Fuel Control

Insufficient Coolant Temperature for Stable Operation

Oxygen (O2) sensor codes

O2 Sensor Circuit (Bank 1 Sensor 1)

O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

O2 Sensor Circuit (Bank 1 Sensor 2)

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

O2 Sensor Circuit (Bank 1 Sensor 3)

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

O2 Sensor Heater Circuit (Bank 1 Sensor 3)

O2 Sensor Circuit (Bank 2 Sensor 1)

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)

O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)

O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

O2 Sensor Heater Circuit (Bank 2 Sensor 1)

O2 Sensor Circuit (Bank 2 Sensor 2)

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)

O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)

O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)

O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)

O2 Sensor Heater Circuit (Bank 2 Sensor 2)

O2 Sensor Circuit (Bank 2 Sensor 3)

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)

O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)

O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)

O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)

O2 Sensor Heater Circuit (Bank 2 Sensor 3)

Diesel fuel injection control codes

Fuel Delivery Error

Fuel Timing Error

Injector/Injection Timing Control Circuit

Fuel temperature sensor codes

Fuel Temperature Too High

Fuel Temperature Sensor "A" Circuit

Fuel Temperature Sensor "A" Circuit Range/Performance

Fuel Temperature Sensor "A" Circuit Low

Fuel Temperature Sensor "A" Circuit High

Fuel Temperature Sensor "A" Circuit Intermittent/Erratic

Fuel Temperature Sensor "B" Circuit

Fuel Temperature Sensor "B" Circuit Range/Performance

Fuel Temperature Sensor "B" Circuit Low

Fuel Temperature Sensor "B" Circuit High

Fuel Temperature Sensor "B" Circuit Intermittent/Erratic

Fuel composition (flex-fuel) sensor codes

Incorrect Fuel Composition

Fuel Composition Sensor Circuit

Fuel Composition Sensor Circuit Range/Performance

Fuel Composition Sensor Circuit Low

Fuel Composition Sensor Circuit High

Fuel trim system codes

Fuel Trim (Bank 1)

Fuel Trim (Bank 2)

System Too Lean (Bank 2)

Fuel rail pressure sensor codes

Fuel Rail Pressure Sensor "A" Circuit

Fuel Rail Pressure Sensor "A" Circuit Range/Performance

Fuel Rail Pressure Sensor "A" Circuit Low

Fuel Rail Pressure Sensor "A" Circuit High

Fuel Rail Pressure Sensor "A" Circuit Intermittent/Erratic

Engine oil temperature sensor codes

Engine Oil Temperature Sensor Circuit

Engine Oil Temperature Sensor Circuit Range/Performance

Engine Oil Temperature Sensor Circuit Low

Engine Oil Temperature Sensor Circuit High

Engine Oil Temperature Sensor Circuit Intermittent/Erratic

Engine Oil Over Temperature

Fuel injector circuit codes

Injector Circuit/Open

Injector Circuit/Open - Cylinder 7

Injector Circuit/Open - Cylinder 8

Injector Circuit/Open - Cylinder 9

Injector Circuit/Open - Cylinder 10

Injector Circuit/Open - Cylinder 11

Injector Circuit/Open - Cylinder 12

Cylinder 1 Injector Circuit Low

Cylinder 1 Injector Circuit High

Cylinder 1 Contribution/Balance

Cylinder 2 Injector Circuit Low

Cylinder 2 Injector Circuit High

Cylinder 2 Contribution/Balance

Cylinder 3 Injector Circuit Low

Cylinder 3 Injector Circuit High

Cylinder 3 Contribution/Balance

Cylinder 4 Injector Circuit Low

Cylinder 4 Injector Circuit High

Cylinder 4 Contribution/Balance

Cylinder 5 Injector Circuit Low

Cylinder 5 Injector Circuit High

Cylinder 5 Contribution/Balance

Cylinder 6 Injector Circuit Low

Cylinder 6 Injector Circuit High

Cylinder 6 Contribution/Balance

Cylinder 7 Injector Circuit Low

Cylinder 7 Injector Circuit High

Cylinder 7 Contribution/Balance

Cylinder 8 Injector Circuit Low

Cylinder 8 Injector Circuit High

Cylinder 8 Contribution/Balance

Cylinder 9 Injector Circuit Low

Cylinder 9 Injector Circuit High

Cylinder 9 Contribution/Balance

Cylinder 10 Injector Circuit Low

Cylinder 10 Injector Circuit High

Cylinder 10 Contribution/Balance

Cylinder 11 Injector Circuit Low

Cylinder 11 Injector Circuit High

Cylinder 11 Contribution/Balance

Cylinder 12 Injector Circuit Low

Cylinder 12 Injector Circuit High

Cylinder 12 Contribution/Balance

Cold start injector codes

Cold Start Injector 1

Cold Start Injector 2

Engine shutoff solenoid codes

Engine Shutoff Solenoid

Engine cooling system codes

Engine Coolant Over Temperature Condition

Transmission fluid temperature codes

Transmission Fluid Over Temperature Condition

Speed limiting monitor codes

Engine Overspeed Condition

Vehicle Overspeed Condition

Fuel pump control circuit codes

Fuel Pump Primary Circuit

Fuel Pump Secondary Circuit Low

Fuel Pump Secondary Circuit High

Fuel Pump Secondary Circuit Intermittent

Turbocharger / supercharger boost control codes

Turbocharger/Supercharger "A" Overboost Condition

Turbocharger/Supercharger "A" Underboost Condition

Turbocharger / supercharger boost pressure sensor codes

Turbocharger/Supercharger Boost Sensor "A" Circuit

Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance

Turbocharger/Supercharger Boost Sensor "A" Circuit Low

Turbocharger/Supercharger Boost Sensor "A" Circuit High

Turbocharger/Supercharger Boost Sensor "B" Circuit

Turbocharger/Supercharger Boost Sensor "B" Circuit Range/Performance

Turbocharger/Supercharger Boost Sensor "B" Circuit Low

Turbocharger/Supercharger Boost Sensor "B" Circuit High

Turbocharger wastegate solenoid codes

Turbocharger/Supercharger Wastegate Solenoid "A"

Turbocharger/Supercharger Wastegate Solenoid "A" Range/Performance

Turbocharger/Supercharger Wastegate Solenoid "A" Low

Turbocharger/Supercharger Wastegate Solenoid "A" High

Turbocharger/Supercharger Wastegate Solenoid "B"

Turbocharger/Supercharger Wastegate Solenoid "B" Range/Performance

Turbocharger/Supercharger Wastegate Solenoid "B" Low

Turbocharger/Supercharger Wastegate Solenoid "B" High

Diesel injection pump fuel metering control codes

Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector) Range/Performance

Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector) Low

Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector) High

Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector) Intermittent

Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector) Range/Performance

Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector) Low

Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector) High

Injection Pump Fuel Metering Control "B" (Cam/Rotor/Injector) Intermittent

Misfire monitor codes

Cylinder 9 Misfire Detected

Cylinder 10 Misfire Detected

Cylinder 11 Misfire Detected

Cylinder 12 Misfire Detected

Misfire Detected with Low Fuel

Single Cylinder Misfire (Cylinder not Specified)

Engine Misfire Detected on Startup (First 1000 Revolutions)

Misfire Detected - Fueling Disabled

Crankshaft position (CKP) sensor codes

Crankshaft Position System Variation Not Learned

Crankshaft Position Sensor "A" Circuit Range/Performance

Crankshaft Position Sensor "A" Circuit Low

Crankshaft Position Sensor "A" Circuit High

Crankshaft Position Sensor "A" Circuit Intermittent/Erratic

Crankshaft Position Sensor "B" Circuit

Crankshaft Position Sensor "B" Circuit Range/Performance

Crankshaft Position Sensor "B" Circuit Low

Crankshaft Position Sensor "B" Circuit High

Crankshaft Position Sensor "B" Circuit Intermittent/Erratic

Rough road detection codes

Rough Road Hardware Not Present

Rough Road Sensor "A" Signal Circuit

Rough Road Sensor "B"

Ignition / distributor engine speed input codes

Ignition/Distributor Engine Speed Input Circuit

Ignition/Distributor Engine Speed Input Circuit Range/Performance

Ignition/Distributor Engine Speed Input Circuit No Signal

Ignition/Distributor Engine Speed Input Circuit Intermittent

Knock sensor codes

Knock Control System Error

Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)

Knock Sensor 1 Circuit Low (Bank 1 or Single Sensor)

Knock Sensor 1 Circuit High (Bank 1 or Single Sensor)

Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)

Knock Sensor 2 Circuit (Bank 2)

Knock Sensor 2 Circuit Range/Performance (Bank 2)

Knock Sensor 2 Circuit Low (Bank 2)

Knock Sensor 2 Circuit High (Bank 2)

Knock Sensor 2 Circuit Intermittent (Bank 2)

Camshaft position (CMP) sensor codes

Camshaft Position Sensor "A" Circuit Low (Bank 1 or Single Sensor)

Camshaft Position Sensor "A" Circuit High (Bank 1 or Single Sensor)

Camshaft Position Sensor "A" Circuit Intermittent/Erratic (Bank 1 or Single Sensor)

Camshaft Position Sensor "A" Circuit (Bank 2)

Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2)

Camshaft Position Sensor "A" Circuit Low (Bank 2)

Camshaft Position Sensor "A" Circuit High (Bank 2)

Camshaft Position Sensor "A" Circuit Intermittent/Erratic (Bank 2)

Camshaft Position Sensor "B" Circuit (Bank 1)

Camshaft Position Sensor "B" Circuit Range/Performance (Bank 1)

Camshaft Position Sensor "B" Circuit Low (Bank 1)

Camshaft Position Sensor "B" Circuit High (Bank 1)

Camshaft Position Sensor "B" Circuit Intermittent/Erratic (Bank 1)

Camshaft Position Sensor "B" Circuit (Bank 2)

Camshaft Position Sensor "B" Circuit Range/Performance (Bank 2)

Camshaft Position Sensor "B" Circuit Low (Bank 2)

Camshaft Position Sensor "B" Circuit High (Bank 2)

Camshaft Position Sensor "B" Circuit Intermittent/Erratic (Bank 2)

Ignition coil circuit codes

Ignition Coil Primary/Secondary Circuit

Ignition Coil "A" Primary/Secondary Circuit

Ignition Coil "B" Primary/Secondary Circuit

Ignition Coil "C" Primary/Secondary Circuit

Ignition Coil "D" Primary/Secondary Circuit

Ignition Coil "E" Primary/Secondary Circuit

Ignition Coil "F" Primary/Secondary Circuit

Ignition Coil "G" Primary/Secondary Circuit

Ignition Coil "H" Primary/Secondary Circuit

Ignition Coil "I" Primary/Secondary Circuit

Ignition Coil "J" Primary/Secondary Circuit

Ignition Coil "K" Primary/Secondary Circuit

Ignition Coil "L" Primary/Secondary Circuit

High-resolution timing reference signal codes

Timing Reference High Resolution Signal "A"

Timing Reference High Resolution Signal "A" Too Many Pulses

Timing Reference High Resolution Signal "A" Too Few Pulses

Timing Reference High Resolution Signal "A" Intermittent/Erratic Pulses

Timing Reference High Resolution Signal "A" No Pulse

Timing Reference High Resolution Signal "B"

Timing Reference High Resolution Signal "B" Too Many Pulses

Timing Reference High Resolution Signal "B" Too Few Pulses

Timing Reference High Resolution Signal "B" Intermittent/Erratic Pulses

Timing Reference High Resolution Signal "B" No Pulse

Diesel glow plug system codes

Glow Plug/Heater Circuit "A"

Glow Plug/Heater Indicator Circuit

Glow Plug/Heater Circuit "B"

Exhaust gas recirculation (EGR) system codes

Exhaust Gas Recirculation "A" Flow

Exhaust Gas Recirculation "A" Flow Excessive Detected

Exhaust Gas Recirculation "A" Control Circuit

Exhaust Gas Recirculation "A" Control Circuit Range/Performance

Exhaust Gas Recirculation "A" Control Circuit Low

Exhaust Gas Recirculation "A" Control Circuit High

EGR position / feedback sensor codes

Exhaust Gas Recirculation Sensor "A" Circuit Low

Exhaust Gas Recirculation Sensor "A" Circuit High

Exhaust Gas Recirculation Sensor "B" Circuit Low

Exhaust Gas Recirculation Sensor "B" Circuit High

Exhaust Gas Recirculation Sensor "A" Circuit

Exhaust Gas Recirculation Sensor "B" Circuit

Secondary air injection system codes

Secondary Air Injection System

Secondary Air Injection System Incorrect Flow Detected

Secondary Air Injection System Switching Valve "A" Circuit

Secondary Air Injection System Switching Valve "A" Circuit Open

Secondary Air Injection System Switching Valve "A" Circuit Shorted

Secondary Air Injection System Switching Valve "B" Circuit

Secondary Air Injection System Switching Valve "B" Circuit Open

Secondary Air Injection System Switching Valve "B" Circuit Shorted

Secondary Air Injection System Control "A" Circuit

Secondary Air Injection System Control "B" Circuit

Secondary Air Injection System Insufficient Flow (Bank 1)

Secondary Air Injection System Insufficient Flow (Bank 2)

Catalytic converter codes

Warm Up Catalyst Efficiency Below Threshold (Bank 1)

Main Catalyst Efficiency Below Threshold (Bank 1)

Heated Catalyst Efficiency Below Threshold (Bank 1)

Heated Catalyst Temperature Below Threshold (Bank 1)

Catalyst Heater Control Circuit (Bank 1)

Warm Up Catalyst Efficiency Below Threshold (Bank 2)

Main Catalyst Efficiency Below Threshold (Bank 2)

Heated Catalyst Efficiency Below Threshold (Bank 2)

Heated Catalyst Temperature Below Threshold (Bank 2)

Catalyst Heater Control Circuit (Bank 2)

Catalyst temperature sensor codes

Catalyst Temperature Sensor (Bank 1 Sensor 1)

Catalyst Temperature Sensor Range/Performance (Bank 1 Sensor 1)

Catalyst Temperature Sensor Low (Bank 1 Sensor 1)

Catalyst Temperature Sensor High (Bank 1 Sensor 1)

Catalyst Temperature Sensor (Bank 2 Sensor 1)

Catalyst Temperature Sensor Range/Performance (Bank 2 Sensor 1)

Catalyst Temperature Sensor Low (Bank 2 Sensor 1)

Catalyst Temperature Sensor High (Bank 2 Sensor 1)

Evaporative emission (EVAP) system codes

Evaporative Emission System

Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)

EVAP purge valve codes

Evaporative Emission System Incorrect Purge Flow

Evaporative Emission System Purge Control Valve Circuit

Evaporative Emission System Purge Control Valve Circuit Open

Evaporative Emission System Purge Control Valve Circuit Shorted

Evaporative Emission System Purge Control Valve Circuit Low

Evaporative Emission System Purge Control Valve Circuit High

Evaporative Emission System High Purge Flow

Evaporative Emission System Low Purge Flow

EVAP vent valve codes

Evaporative Emission System Vent Control Circuit Open

Evaporative Emission System Vent Control Circuit Shorted

Evaporative Emission System Vent Valve Control Circuit Low

Evaporative Emission System Vent Valve Control Circuit High

EVAP pressure sensor codes

Evaporative Emission System Pressure Sensor/Switch

Evaporative Emission System Pressure Sensor/Switch Range/Performance

Evaporative Emission System Pressure Sensor/Switch Low

Evaporative Emission System Pressure Sensor/Switch High

Evaporative Emission System Pressure Sensor/Switch Intermittent

Fuel level sensor codes

Fuel Level Sensor "A" Circuit

Fuel Level Sensor "A" Circuit Range/Performance

Fuel Level Sensor "A" Circuit Low

Fuel Level Sensor "A" Circuit Intermittent/Erratic

EVAP purge flow sensor codes

EVAP Purge Flow Sensor Circuit

EVAP Purge Flow Sensor Circuit Range/Performance

EVAP Purge Flow Sensor Circuit Low

EVAP Purge Flow Sensor Circuit High

EVAP Purge Flow Sensor Circuit Intermittent

Exhaust pressure sensor codes

Exhaust Pressure Sensor "A" Circuit

Exhaust Pressure Sensor "A" Circuit Range/Performance

Exhaust Pressure Sensor "A" Circuit Low

Exhaust Pressure Sensor "A" Circuit High

Exhaust Pressure Sensor "A" Circuit Intermittent/Erratic

Exhaust pressure control valve codes

Exhaust Pressure Control Valve "A"

Exhaust Pressure Control Valve "A" Range/Performance

Exhaust Pressure Control Valve "A" Low

Exhaust Pressure Control Valve "A" High

Exhaust Pressure Control Valve "A" Intermittent

Engine cooling fan control codes

Fan 1 Control Circuit

Fan 2 Control Circuit

Fan 3 Control Circuit

Fan Rationality Check

Fan Circuit Over Current

Fan Power/Ground Circuit

EGR throttle (diesel intake throttle) codes

Exhaust Gas Recirculation Throttle Position Control Circuit

Exhaust Gas Recirculation Throttle Position Control Range/Performance

Vehicle speed sensor (VSS) codes

Vehicle Speed Sensor "A"