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DTC / Descrip‐ tion Monitor Strategy Descrip‐ tion Malfunction Crite‐ ria and Threshold Value Secondary Parame‐ ters with Enable Conditions Monitoring Time Length MIL Il‐ lum. Component Diag‐ nostic Procedure P025A Fuel Pump Module "A" Con‐ trol Cir‐ cuit/ Open Fuel Pump Open Cir‐ cuit • Signal voltage, lower range > 1.92 – 2.21 V • And upper range (hardware val‐ ues) < 2.84 – 3.25 V • Commanded PWM 9.80 – 90.20 % • Fuel pump com‐ manded off • 0.5 s uous • 2 DCY – Check the Fuel Pump Control Module - J538- / Fuel Delivery Unit - GX1- . Re‐ fer to P025C Fuel Pump Module "A" Con‐ trol Cir‐ cuit Low Fuel Pump Short To Ground • Signal voltage (hardware val‐ ues) < 1.92 – 2.21 V • Commanded PWM 9.80 – 90.20 % • Fuel pump com‐ manded off • 3.0 s uous • 2 DCY – Check the Fuel Pump Control Module - J538- / Fuel Delivery Unit - GX1- . Re‐ fer to P025D Fuel Pump Module "A" Con‐ trol Cir‐ cuit High Fuel Pump Short To Battery Voltage • Power stage temperature > 160.0 – 200.0° C • Or (hardware val‐ ues) > 0.1 – 0.18 A • Commanded PWM 9.80 – 90.20 % • Fuel pump com‐ manded on • 0.5 s uous • 2 DCY – Check the Fuel Pump Control Module - J538- / Fuel Delivery Unit - GX1- . Re‐ fer to P0261 Cylinder 1 Injec‐ tor "A" Circuit Low Injection Valves Short To Ground • Fault pattern for short to ground via powerstage di‐ agnosis detec‐ ted • Injector voltage < 2.0 V • Engine stop not active • ECT @ cylinder head >= -30° C • Engine speed < 7,000 RPM • Injection time >= 0.0 s • 8,640.0° CRK • Contin‐ uous • 2 DCY – Check the Fuel Injectors . Refer to Injection Valves Short To Ground (High Side) • Injector driver voltage < 2 V • And high side switch current (hardware val‐ ues) > 25 A • Engine running head >= -30° C • Engine speed < 7,000 RPM • Injection time >= 0.0 s • 720° CRK • Contin‐ uous GTI 2014 ➤ Generic Scan Tool - Edition 04.2015 3. Diagnosis and Testing 93 |