Cooling System - DOR Radiator DTC P1580 Diagnostics

No: TSB-11-13-004REV

DATE: June, 2011

MODEL: 2006-2011 Galant

Subject:
DTC P1580 - Direct Ozone Reduction (DOR) Radiator Diagnosis

This bulletin supercedes TSB-11-13-004, issued March, 2011, to add a dedicated labor operation number and labor time to the Warranty Information. Changes are indicated by <.

PURPOSE

Provide a procedure to identify false P1580 DTCs in 2006-2011 Galant with California (PZEV) emissions equipment.

All 2006-2011 Galant 4 cylinder vehicles with California emissions are equipped with a Direct Ozone Reduction (DOR) radiator with a tamper proof monitor. DTC P1580 is set if the PCM does not receive the proper signal from the monitor to confirm a DOR radiator is installed in the vehicle. On rare occasions an unknown random occurrence momentarily interrupts the communication between the PCM and the tamper proof monitor. This condition may set a false DTC P1580 and illuminate the MIL. The MIL will not switch off and the DTC remains stored regardless of the number of drive cycles with DOR confirmation detected. If the DTC has been cleared it has not reoccurred in customer vehicles. Lab investigations have not been able to duplicate this anomaly. No defect exists with this condition.

AFFECTED VEHICLES
2006-2011 Galant with 4 cyl engines and California (PZEV) emissions equipment.

REQUIRED PROCEDURE

Check the vehicle's Warranty history on the Super Screen to confirm that this is the first occurrence of DTC P1580. If so continue with the following procedure. If DTC 1580 has been reported before replace the radiator/sensor assembly.

1. DO NOT erase any DTCs in PCM memory until step 4 of this procedure.

2. Confirm that a DOR radiator is installed in the vehicle. Check for the following part numbers located on the radiator or check for the "PremAir" label affixed to the top of the radiator tank.

^ 1350A261 ^ 1350A283 ^ 1350A377





3. Ensure the connector and wiring between the tamper proof monitor and the wiring harness are in good condition.

4. Erase DTCs from the ECM.

5. Drive the vehicle for 10 minutes.

^ If DTC P1580 resets diagnose for DTC P1580 per Group 13A - Fuel in the service manual.

^ If DTC P1580 does not reset the procedure is complete.

PARTS INFORMATION

Use Genuine Mitsubishi parts as listed in ASA CAPS.








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