Service bulletin 08-051-16

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

SUBJECT: Flash: Air Suspension Control Module (ASCM) OVERVIEW: This bulletin involves updating the ASCM with the latest available software. SYMPTOM/CONDITION: Customers may experience no ride height change with the vehicle in real cold conditions and in addition they may also have a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · C15A1-00 - Unable To Obtain Desired Ride Height. · C1562-98 - Ride Height Air Pump Control - Component Or System Over Temperature. · C1562-92 - Height Air Pump Control - Performance Or Incorrect Operation. · C159F-92 - Air Suspension Reverse Valve 1 Control - Performance Or Incorrect Operation. · C15A0-92 - Air Suspension Reverse Valve 2 Control - Performance Or Incorrect Operation. · C155E-92 - Height Pressure Vent Control - Performance Or Incorrect Operation. • C15AA-00 - Air Leak During Vent. In addition, the customer may notice the following condition: • Vehicle does not change ride heights when selected in cold weather.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Suspension, Air suspension

Trouble codes named

C155E, C1562, C159F, C15A0, C15A1, C15AA

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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