TOYOTA
Reported code forms U0121
ELECTRIC POWER STEERING: MIL ON DTC U0105 & U0121. *TT UPDATED 10/26/07. *NJ
HomeU0121 · Manufacturer communications
U0121 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CADILLAC, CHEVROLET, GMC
Reported code forms U0121
IGNITION SWITCH DIAGNOSTIC TIPS - DTC CODES C0561, P1629, P1682, U0101, U0121, U0155 AND/OR NO CRANK/NO START, HVAC, RADIO, ON STAR, POWER ADJUSTABLE PEDALS, AND OTHER ELECTRICAL COMPONENTS INOPERATIVE. *KB