DESCRIPTION:
Turbocharger speed below threshold (low box).

MONITORED PARAMETER:
None

TYPICAL ENABLING CONDITIONS:
Turbocharger speed below threshold.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
None

TYPICAL DURATION:
None

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
None

VERIFICATION:
None

PROBABLE CAUSES:
1. Air intake system has leaks – hoses, CAC, etc…
2. Turbocharger speed sensor wiring/connector.
3. Turbocharger speed sensor.