Section 3 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 7.3L (995, 996 F650/750, 99F E Series & 99F F450/550) DIESEL)
WARNING: This page is about a different variant/trim than selected.
- Introduction
- Self-Diagnostic System
- Quick Test
- Additional System Functions
- Programming Pcm
- Drive Cycles
- Summary
- Diagnostic Trouble Code Definitions
- Pcm Connector Identification
- System Tests
- Notes
- How To Use System Tests
- Test A: Vehicle Battery
- Test C: Reference Voltage
- Test DA: Intake Air Temperature Sensor
- Test Db: Engine Oil Temperature Sensor
- Test Dc: Injection Control Pressure Sensor
- Test Dd: Accelerator Pedal Sensor
- Test De: Exhaust BACKPRESSURE Sensor
- Test DF: Camshaft Position Sensor
- Test Dg: Barometric Pressure Sensor
- Test DH: Manifold Absolute Pressure Sensor
- Test Di: Manifold Air Temperature Sensor (Except ECONOLINE)
- Test DJ: Water In Fuel Sensor
- Test DK: Water In Fuel Indicator Light
- Test DL: Vehicle Speed Sensor
- Test Dm: Engine Coolant Temperature Sensor (Manual Transmissions Only)
- Test Fa: Air Conditioning
- Test FB: Brake Pressure Applied Switch
- Test FC: Clutch Pedal Position Switch/Neutral Start Switch
- Test FD: Brake Pedal Position Switch
- Test FE: Idle Validation Switch
- Test Ff: Parking Brake Applied Switch
- Test FG: Speed Control Command Switch
- TEST FH: 4x4 LOW (EXCURSION & PICKUP)
- Test FJ: Injector Driver Module Feedback
- Test FK: Fuel Pump Monitor Control (ECONOLINE, Excursion & F250-550)
- Test H: Auxiliary Powertrain Control System
- Test KA: Cylinder Identification
- Test Kb: Exhaust BACKPRESSURE Regulator
- Test Kc: Glow Plug System (Federal Emissions)
- Test KD: Glow Plug Light
- Test KE: Injection Pressure Regulator
- Test KF: Fuel Delivery Command Signal
- Test Kg: Tachometer (Excursion & F250-750)
- Test KH: WASTEGATE Control Solenoid (Excursion & F250-550)
- Test KJ: KICKDOWN Solenoid Relay (ALLISON At545)
- Test Kl: Manifold Intake Air Heater
- Test Ma: Continuous Memory Failure
- Test MB: OBD-II Readiness Code
- Test MC: Pcm Inactive Background Fault
- Test MD: Pcm ROM Failure
- Test Me: Pcm Reset
- Test NA: Injector Drive Circuit Operation
- Test NB: Check Engine Light
- Test NC: Injector Driver Module Enable
- Test QA: Unable To Activate Self-Test/SCP Communication Error/DTC Not Listed
- Test QB: Glow Plug System (CALIFORNIA Emissions)
- Test QC: Electronic Throttle Control
- Wiring Diagrams