Description of On-Board Diagnostics II

ON Board Diagnostic II,Overview

NOTE:
- The control module for the fuel injection and ignition system is equipped with a Diagnostic Trouble Code (DTC) memory. Before carrying out repairs, adjustment work and troubleshooting the DTC memory must be checked and the vacuum connections checked.
- Components marked with an asterisk (*) are checked via the On Board Diagnostic (OBD) program.
- Components marked with two asterisks (**) are checked via the output Diagnostic Test Mode (DTM).
- For trouble-free operation of the electrical components, a voltage of at least 11.5 volts is necessary.
- During some checks it can happen that the ECM will recognize and store a malfunction. Therefore after completing all checks and repairs the DTC memory must be checked and if necessary erased: Scan Tool Function 02.