Diagnostic mode 3: Check DTC Memory: Procedure
- Connect diagnostic tester. See DIAGNOSTIC TESTER, CONNECTING .
- Start engine and let run at idle.
NOTE:
Only if engine does not start:
- Operate starter for approx. 6 seconds. Do not switch ignition off afterward .
- Under address word 33, select "Diagnostic mode 3:, Check DTC memory."
The number of stored malfunctions or "0 malfunctions detected" is displayed.
- End diagnosis and switch ignition off.
- Repair stored malfunctions according to DTC table:
- SAE P0xxx-DTCs. See DIAGNOSTIC TROUBLE CODE (DTC) TABLES: ,
- SAE P1xxx-DTCs. See SAE P1XXX-DTCS ,
- SAE P2xxx-DTCs. See SAE P2XXX-DTCS ,
- SAE P3xxx-DTCs. See SAE P3XXX-DTCS .
NOTE:
- The DTC table is sorted by SAE code.
- "E-Gas" -relevant malfunctions are also indicated by the warning lamp for Electronic Power Control ("EPC warning lamp") in the instrument cluster.
- In addition, "emission" -relevant malfunctions are indicated in the instrument cluster via the Malfunction Indicator Lamp (MIL).
- In diagnostic mode 2, it can be determined at which operating condition a malfunction was detected and stored by the Engine Control Module (ECM).See DIAGNOSTIC MODE 2: CHECKING OPERATING CONDITIONS .
- Erase DTC memory after repairing malfunction. See DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Display example:
P0444 Evaporative Emission System Purge Control Valve Circuit Open
Explanation:
- P0444 = SAE diagnostic trouble code (malfunction identification number).
- Evaporative Emission System Purge Control Valve = malfunctioning wiring path or malfunctioning component.
- Circuit Open = Malfunction type as text