Readiness Code, Function

Readiness code

The readiness code appears as an 8-digit display in measured value block 086, display zone 1. Each of the 8 digits is assigned to a specific system of relevance to emissions.

In the course of a test series which has to be implemented in full, the self-diagnosis checks operation of each of these systems and switches the appropriate position in the 8-digit display from "1" to "0" on successful completion of the individual test concerned.

The readiness code generated on successful completion of the test series is "0 0 0 0 0 0 0 0" (measured value block 086, display zone 1).

A fault entry is made in the fault memory if an individual test has been completed, but with the result "not OK". Interrogate fault memory Readiness Code, Generating

The readiness code is reset to "0 1 1 0 1 1 0 1" if:

- Fault memory has been erased
- A new engine control module is installed

In this case a new readiness code must be generated Readiness Code, Generating

NOTE: When driving under various load conditions, the tests of relevance to emissions are implemented by the control module and the readiness code is automatically generated. In such cases, however, there is no provision for final checking; i.e. there is no means of ensuring that the vehicle handed over to the customer is in perfect working order.