Diagnostic Mode 02 - Read Operating Conditions

Diagnostic Mode 02 - Read Operating Conditions

When an emissions-related fault (pending DTC, visible in mode 07) is first detected, operating conditions are stored. Mode 02 makes it possible to access this freeze frame data as soon as this fault is shown in mode 03. Each control module only shows freeze frame data for one fault via mode 02. Therefore, there are two priority levels. If there is a malfunction with higher priority, the freeze frame data is overwritten.
- Fault with higher priority: Misfire malfunction or fuel trim malfunction.
- Fault with normal priority: All other emissions-related faults.

Work Procedure
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Depending on the desired operating condition:
switch ignition on
or
start engine and let run at idle.

- Under address word 33, select "Diagnostic mode 2: Check operating conditions."
- Select the desired operating condition "PID XX".

NOTE:
- The operating conditions are organized according to PIDs (parameter identifiers).
- The PIDs activated depend on engine code.







If DTCs are displayed in "PID 02":
- Repair stored malfunctions according to DTC table:
- SAE P0xxx-DTCs P0010
- SAE P1xxx-DTCs P1102
- SAE P2xxx-DTCs P2096
- SAE P3xxx-DTCs P3078

- End diagnosis and switch ignition off.