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DTC / Descrip‐ tion Monitor Strategy Descrip‐ tion Malfunction Crite‐ ria and Threshold Value Secondary Parame‐ ters with Enable Conditions Monitor‐ ing Time Length MIL Il‐ lum. Component Diag‐ nostic Procedure P0090 Fuel Pres‐ sure Regula‐ tor 1 Control Circuit/ Open Fuel Vol‐ ume Reg‐ ulator Control open cir‐ cuit • Voltage high side < 1.87 – 2.26 V • Voltage low side > 2.78 – 3.33 V • Engine speed > 600 rpm • And active • Actuator com‐ manded on • 0.8 s tinu‐ ous • 2 DCY – Check the Fuel Pressure Regu‐ lator Valve - N276- . Refer to . • Low and high side Off: • Voltage low side > 2.78 – 3.33 V • Voltage high side < 1.87 – 2.26 V • Low and high side On: • Current low side driver stage internal value • Current high side driver stage internal value P0091 Fuel Pres‐ sure Regula‐ tor 1 Control Circuit Low Fuel Vol‐ ume Reg‐ ulator Control short to ground (high side) • Current high side driver stage internal value (hard‐ ware values) • Ignition on ing ECM keep alive-time) • And manded on • 0.8 s tinu‐ ous • 2 DCY – Check the Fuel Pressure Regu‐ lator Valve - N276- . Refer to . Fuel Vol‐ ume Reg‐ ulator Control short to ground (low side) • Voltage low side < 1.87 – 2.26 V (hard‐ ware values) • Ignition on ing ECM keep alive-time) • And manded off GTI 2014 ➤ Generic Scan Tool - Edition 04.2015 3. Diagnosis and Testing 213 |