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Engine Control System (4JH1) 6E-55 P1120 (1) 21 ON Accelerator • The ignition switch is ON. • The ECM detects that the APP • Sensor 5V reference circuit is short to battery • Sensor 5V reference circuit is short to ground • Sensor signal circuit is short to any 5V • Sensor low reference circuit is open circuit or • Poor harness connector connection. • Faulty APP sensor. P1120 (2) 21 ON Accelerator • The ignition switch is ON. • The ECM detects that the APP • Sensor 5V reference circuit is open circuit, • Sensor signal circuit is open circuit, high • Poor harness connector connection. • Faulty APP sensor. P1120 (7) 21 ON Accelerator • The ignition switch is ON. • The ECM detects that the APP • Sensor 5V reference circuit is short to battery • Faulty ECM. P1120 (9) 21 ON Accelerator • The ignition switch is ON. • The ECM detects that the APP • Sensor 5V reference circuit is short to ground • Faulty APP sensor. DTC (Symptom Code) Flash MIL Status DTC Name on Tech 2 Condition for Running the DTC Condition for Setting the DTC Possible Cause |