Diesel injection ECU

K9K

Essential equipment

diagnostic tool

Tightening torques
battery tray mounting bolt	2.1 daN.m

Note: When programming, reprogramming or replacing the ECU, it is necessary to teach it the C2I (individual injector correction) parameters and the engine adaptive values using the RENAULT CLIP diagnostic tool.

There are two methods available (Diesel injection chapter):

• an automatic method, which can be used if the information stored in the old ECU can be read,
• a manual method, which must be used when the information stored in the old ECU cannot be read.

REMOVAL

• Remove the engine covers.
• Disconnect the battery.
• Remove the battery.

• Disconnect the connectors (1) from the injection ECU.
• Remove:

• the three mounting screws (2) of the battery tray,
• the clip (3) of the wiring harness.

• Unclip the wiring harnesses from the battery tray.
• Remove the battery tray.

• Remove the injection ECU with its bracket (4).

• Remove:

• the four ECU mounting screws (5),
• the ECU.

INSTALLATION

• Refit in the reverse order of removal.
• Tighten the battery tray mounting bolts to torque (2.1 daN.m).
• Make sure to refit the battery tray correctly onto the ECU bracket.

WARNING

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

• Follow the instructions for teaching the C2I (individual injector correction) parameters and engine adaptive values (Diesel injection chapter).
• Switch on the ignition and read the fault codes using the diagnostic tool.
• Repair the reported faults if necessary.
• Clear the faults.
• Check that the vehicle operates correctly.

F9Q

Essential equipment

diagnostic tool

Tightening torques
battery tray mounting bolt	2.1 daN.m

When reprogramming or replacing the ECU, it is necessary to teach the new ECU the IMA (injector flow correction) codes for all four injectors (Diesel injection chapter).

REMOVAL

• Remove the engine covers.
• Disconnect the battery.
• Remove the battery.

• Disconnect the connectors (1) from the injection ECU.
• Unplug the turbocharger boost pressure control solenoid valve.
• Remove:

• the three mounting screws (2) of the battery tray,
• the clip (3) of the wiring harness,
• the battery tray.

• Remove the injection ECU with its bracket (4).

• Remove:

• the four ECU mounting screws (5),
• the ECU.

INSTALLATION

• Refit in the reverse order of removal.
• Make sure to refit the battery tray correctly onto the ECU bracket.
• Tighten the battery tray mounting bolts to torque (2.1 daN.m).

WARNING

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

• Write the IMA (injector flow correction) codes following the procedure described (Diesel injection chapter).
• Switch on the ignition.
• Read the fault codes using the diagnostic tool.
• Repair the reported faults if necessary.
• Clear the faults.
• Check that the vehicle operates correctly.