Sunday, April 7, 2013

Technical bulletin - VDC OFF and SLIP lights come on after ignition

Came across a 2010 bulletin that describes the VDC OFF and SLIP light diagnosis process. This sheds some more light on the process of diagnosing  at the dealership once they use the Consult III and pull the ECU codes:
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Reference: NTB10-145
Date: December 15, 2010
ABS / VDC CAN DIAGNOSIS INFORMATION
APPLIED VEHICLES: All 2005-2011 Nissan vehicles with ABS and/or VDC
SERVICE INFORMATION
When diagnosing a vehicle with an ABS or VDC / SLIP warning light on with DTCs stored in the ABS / VDC actuator control unit, perform DTC diagnosis first.
^ Do not replace the ABS / VDC actuator control unit without being supported by the DTC diagnosis.
^ Do not erase DTCs before performing DTC diagnosis.
^ Always fully diagnose before performing any repairs. When DTC U1000 (CAN COMM CIRCUIT) is the only DTC stored in the ABS / VDC actuator control unit, use the REPAIR FLOW CHART below. This will assist in proper diagnosis results and repairs in addition to using diagnostic information in the Electronic Service Manual (ESM).

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So, where does that us? Well two things:

1) If its a serious issue, the dealership will want to replace the "VDC actuator control unit".  Average cost - somewhere from $1000 - $2000.

2) if I can get my hands on a coy of the ESM (ELectronic Service Manual) I can double check that the dealership isnt' BS'ing me on the fix (i have had this happen to me before when I had the minor evap leak, that the mechanic gave me a bunch of tests that were designed to punish my wallet. Plus, knowledge never hurts!)




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