DTC P0470 - Exhaust Pressure Sensor Malfunction: Condition

DTC is set when input voltage from EGR boost sensor (EGR boost signal) is less than .1 volts or greater than 4.9 volts when ignition switch is turned on. Possible causes are:

• EGR boost sensor malfunction.
• Loose, damaged or clogged EGR boost sensor vacuum hose.
• Open or short circuit between terminal "B" on EGR boost sensor and terminal No. 3H on Engine Control Module (ECM).
• Open or short circuit between terminal "C" on EGR boost sensor and terminal No. 3O on Engine Control Module (ECM).
• Open circuit between terminal "A" on EGR boost sensor and terminal No. 3N on Engine Control Module (ECM).