DTC Troubleshooting: P0262 (71), P0265 (72), P0268 (73), P0271 (74)

DTC P0262:  No. 1 Cylinder Injector Circuit High Voltage
  
  
DTC P0268:  No. 3 Cylinder Injector Circuit High Voltage
  
  

1.Turn the ignition switch ON (II).

2.Do the DTC CLEAR in the CLEAR MENU with the HDS.

3.Start the engine.

4.Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Is DTC P0262, P0265, P0268 or P0271 indicated?


YES - Go to 5.


NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the injectors and the ECM.n


5.Turn the ignition switch OFF.

6.Disconnect the injector 2P connector from the problem cylinder.

7.At the injector side, measure the resistance between the injector 2P connector terminals No. 1 and No. 2.

 

Is there 11.4-12.6 W (at 20°C (68°F))?


YES - Go to 8.


NO - Go to 12.

8.Turn the ignition switch OFF, and wait 10 seconds.

9.Disconnect ECM connector No. 3 (52P).

10.Turn the ignition switch ON (II).

11.Measure voltage between injector 2P connector terminal No. 1 and body ground (see table).

 

PROBLEM CYLINDER DTC ECM
TERMINAL No.
(CONNECTOR) 
TEST PIN BOX
TERMINAL No. 
WIRE COLOR 
No. 1 P0262 10 (No. 3) 39 BRN 
No. 2 P0265 13 (No. 3) 42 RED 
No. 3 P0268 11 (No. 3) 40 BLU 
No. 4 P0271 12 (No. 3) 41 YEL 

Is there continuity?


YES - Repair short to power in the wire between the ECM connector terminal and the injector (see table), then go to 14.


NO - Go to 20.

12.Turn the ignition switch OFF.

13.Replace the problem injector.

14.Reconnect all connectors.

15.Turn the ignition switch ON (II).

16.Do the ECM RESET in the CLEAR MENU with the HDS.

17.Do the ETCS learn procedure.

18.Start the engine, and let it idle for 10 seconds.

19.Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P0262, P0265, P0268 or P0271 is indicated, check for poor connections or loose terminals at the injector and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting.


NO - Troubleshooting is complete.n


20.Substitute a known-good ECM.

21.Start the engine.

22.Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P0262, P0265, P0268 or P0271 is indicated, check for poor connections or loose terminals at the injector and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting.


NO - Replace the original ECM.n