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6E-82 Engine Control System (4HK1) P1271 24 ON Accelerator • DTCs P1630, P1631 and P1632 are not • The ignition switch is ON. • The ignition voltage is more than 18 • The ECM detects that the APP sensor • Sensor 5V reference circuit is high resistance. • Sensor signal circuit is high resistance. • Sensor low reference circuit is high resistance. • Faulty sensor. interference and P1277 24 ON Accelerator • DTCs P1630 and P1631 are not set. • The ignition switch is ON. • The ignition voltage is more than 18 • The ECM detects that the APP sensor • Sensor 5V reference circuit is short to ground • Sensor 5V reference circuit is open circuit, • Sensor signal circuit is open circuit, high • Poor harness connector connection. • Faulty sensor. P1278 24 ON Accelerator • DTCs P1630 and P1631 are not set. • The ignition switch is ON. • The ignition voltage is more than 18 • The ECM detects that the APP sensor • Sensor 5V reference circuit is short to battery • Sensor signal circuit is short to battery, ignition • Sensor low reference circuit is open circuit or • Poor harness connector connection. • Faulty sensor. DTC Flash MIL Status DTC Name Condition for Running the DTC Condition for Setting the DTC Possible Cause |