DTC P1261 Injector Charge Circuit Low Voltage (4JJ3 with DPD)

1. DTC P1261 description

The charge-up circuit in the ECM increases the voltage applied to the injector. If there is an insufficient charge in the injector charge-up circuit in the ECM, the DTC is set.

2. Condition for setting DTC P1261

Condition for running the DTC

  • The battery voltage is 9 to 16 V.
  • The ignition switch is ON.
  • The engine is running.

Condition for setting the DTC

  • The ECM detects that there is an insufficient charge in the injector charge-up circuit in the ECM for 3 seconds or more.

3. Action taken when DTC P1261 sets

  • The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

  • The ECM limits the fuel injection quantity.
  • The ECM inhibits engine startup.
  • The ECM inhibits pre-injection.
  • The ECM inhibits the cruise control.

4. Condition for clearing DTC P1261

  • Refer to Conditions for clearing the MIL/DTC - Type A or Type B.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

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