13. DTC: P0204, 4-cylinder Feul Injector Circuit Trouble (see Table 1-26) Table 1-26 14. DTC: P0230, Fuel Pump Control Circuit Trouble (see Table 1-27) Table 1-27 53 S/N Operation Test Results Actions 1 Connect the diagnostic instrument and adapter, and turn the ignition switch to ON. Next step 2 Disconnect the 4-cylinder fuel injector from the harness. Check the voltage between pin 1# of the injector and the negative pole of the power supply with a multimeter. Is the voltage about 12V? Yes Go to step 4 No Next step 3 Check for open circuit or short to ground between the pin 1# of the 4-cylinder fuel injector and the main relay with a multimeter.
Yes Repair or replace harness No Next step 4 Check for resistance between the pin 1#, and the pin 2# of the 4-cylinder fuel injector with a multimeter. Is the resistance between 11Ω and 16Ω under the temperatue of 20℃? Yes Next step No Replace fuel injector 5 Check the voltage between pin 2# of the injector and the negative pole of the power supply with a multimeter. Is the voltage about 3.7V? Yes Diagnosis help No Next step 6 Check for short to power supply or ground between the pin 2# of the injector and the pin 47# of the ECU.
Yes Repair or replace harness No Diagnosis help S/N Operation Test Results Actions 1 Connect the diagnostic instrument and adapter, and turn the ignition switch to OFF. Next step 2 Disconnect the fuel pump relay, and turn the ignition switch to ON. Measure the resistance between pin 30#, 86# of the relay (power supply end) and the power supply negative pole. Is the voltage about 12V? Yes Go to step 4 No Next step 3 Check for open circuit or short to ground at the power supply end of the relay. Yes Repair or replace harness No Go to step 2 4 Measure the voltage between the pin 85# of the relay (control end) and the power supply negative pole with a multimeter. Is the voltage about 3.7V?
Yes Replace fuel pump relay No Next step 5 Check for open circuit or short to power supply or ground between the pin 85# of the relay (control end) and the pin 69# of the ECU. Yes Repair or replace harness No Diagnosis help