Diagnostic Aids

During the ignition cycle DTC U2016:47 initially sets, the PSCM enters limp home mode and steering assist is gradually reduced until the PSCM enters manual mode. The PSCM sends a message to the IPC to display POWER STEERING ASSIST FAULT in the message center.

During the next ignition cycle after DTC U2016:47 sets, if the concern is still present, the PSCM removes steering assist and enters manual mode. The module also transmits an invalid steering angle message over the HS-CAN and sends a message to the IPC to display the POWER STEERING ASSIST FAULT in the message center.

When DTC U2016:48 is set, the PSCM remains in normal operation mode, but all steering features: Active Nibble Control, Pull-Drift Compensation, Evasive Steering Assist (ESA), Lane Departure Warning (LDW), Lane Keep Assist (LKA) and Lane Centering Assist (LCA) may be disabled.