P000B - Exhaust B Camshaft Position Slow Response Bank 1 - DTC Chart

P000B - EXHAUST B CAMSHAFT POSITION SLOW RESPONSE BANK 1 - DTC CHART

Description: The PCM monitors and evaluates the response of the actual position on a target position change. The setpoint and camshaft position are saved at the beginning of a setpoint change. If this change over time is large enough (gradient), the camshaft phasing change is evaluated. If the change after the diagnostic time is smaller than a threshold, a slow response is detected, and if the value is greater, then there is no concern. By detecting a concern, an antibounce counter is incremented otherwise the counter is decremented. This DTC sets when the counter exceeds an adjustable limit.
Possible Causes: Variable camshaft timing (VCT) unit to camshaft alignment Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the VCT valve body Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Radio frequency interference
Diagnostic Aids: This DTC may be accompanied by other DTCs. Diagnose all camshaft position (CMP) sensor DTCs first. If no CMP sensor related DTCs are present, continue to follow diagnosis for this DTC. This DTC is a functional check of the VCT unit. Diagnose any base engine concerns related to the engine oil pressure or engine timing. Refer to the service information , Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the service information , Engine, to check the engine timing and VCT phasers.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test HK .