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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 6.2L - DTC P1255 To DTC P2635 >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Typical Scan Tool Data

Typical Scan Tool Data

Circuit Short to Ground Open Short to Voltage
Parameter Normal Range:  APP 1 varies 0.90-4.35 V
APP Sensor 1 Signal 0 V 0 V 4.98 V
APP Sensor 1 5-Volt Reference 1 0 V 0 V 4.98 V
APP Sensor 1 Low Reference - 5 V -
Circuit Short to Ground Open Short to Voltage
Operating Conditions:  The engine is operating at idle
Parameter Normal Range:  0.32-2.30 V
5-Volt Reference 2 0 V 0 V 5 V
APP Sensor 2 Signal 0 V 0 V 5 V
APP Sensor 2 Low Reference - 4.92 V -
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