P0016
P0016-ENGINE SPEED SIGNAL MISMATCHP0016 - Engine Speed Signal Mismatch:
WHEN MONITORED
While Engine is running.
SET CONDITION
When the engine speed detected by the Engine Position Sensor (cam) and the Engine Speed Sensor (crank) differ by a specified RPM amount.
POSSIBLE CAUSES
- Damage to the ESS or EPS
- Mechanical misalignment of the ESS or EPS
- Mechanical misalignment of the camshaft and crankshaft gears
- Intermittent condition
Diagnostic Test
1. DAMAGE TO THE ESS OR EPS
Visually inspect the condition of the tone wheel, ESS, and EPS for damage.
Q: Are any of the components damaged?
YES: Repair or replace any damaged component. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1
NO: Go To 2
2. MECHANICAL MISALIGNMENT OF THE ESS OR EPS
Verify the speed indicator ring is properly positioned relative to the locating pin in the front face of the crankshaft.
Q: Is the speed indicator ring properly installed?
YES: Go To 3
NO: Repair the speed ring indicator ring installation. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1
3. Test Mechanical misalignment of the camshaft and crankshaft gears.
Check the mechanical alignment of the camshaft gear to the crankshaft gear.
Q: Are the gear teeth in proper alignment?
YES: Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure).
NO: Repair the gear alignment. Perform the POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). Powertrain Verification Test - Ver 1