Engine and peripherals

Replacing components

~1min read

1. ECU REPLACEMENT, PROGRAMMING OR REPROGRAMMING OPERATIONS

The system can be programmed or reprogrammed via the diagnostic socket using the RENAULT CLIP diagnostic tool (see Technical Note 3585A or follow the instructions provided by the diagnostic tool).

WARNING
  • Switch on the diagnostic tool.
  • Connect a battery charger (throughout the (re)programming of the ECU, the engine cooling fan units are switched on automatically).
  • Observe the engine temperature limits given in the diagnostic tool before any (re)programming.

After any ECU programming, reprogramming or replacement

  • Switch off the ignition.
  • Start then stop the engine (to initialise the ECU) and wait 30 seconds.
  • Switch the ignition back on and use the diagnostic tool to carry out the following steps:
  • Use command VP010 "Write VIN".
  • Following the (re)programming of the injection system, stored faults may appear in other ECUs.

    Clear the memory of these ECUs.

  • Run command RZ005 "Learning".
  • Carry out the learning procedures for the engine flywheel target and throttle stops.
  • Carry out a road test followed by a further check with the diagnostic tool.
WARNING

It is not possible to try an injection ECU from the parts store, as it can then no longer be fitted to any other vehicle.

2. CRANKSHAFT (TDC) SENSOR REPLACEMENT OR REMOVAL OPERATION

When replacing or removing the TDC sensor, carry out the engine flywheel target learning procedure.

3. ELECTRONIC THROTTLE BODY REPLACEMENT OPERATION

When replacing the throttle body, carry out the throttle stop learning procedure.

WARNING

Never drive the vehicle without having carried out the throttle stop learning procedure.

Test yourself

A quick Renault Megane quiz: every answer comes with an explanation and a link to the manual page.