Tribute 4WD L4-2.3L Hybrid (2008)
Engine Control Module: All Technical Service Bulletins
Engine Controls - Red Triangle ON/DTC P1A0C Set
Number No: 01-039/09
Last Issued: 09/09/2009
Subject
INTERMITTENT RED TRIANGLE/"STOP SAFELY NOW" MESSAGE ON / WRENCH LIGHT ON / P1A0C SET
BULLETIN NOTE
^ This bulletin supersedes the previous bulletin 01-007/08, issued on 02/13/08. The REPAIR PROCEDURE, PART(S) and WARRANTY
INFORMATION have been revised.
^ Changes are noted below in Red beside the change bar and/or shown in bold.
APPLICABLE MODEL(S)/VINS
2008 Tribute Hybrid
DESCRIPTION
Some vehicles may exhibit an intermittent Red Triangle On and "Stop Safely Now" Message displayed on the message center accompanied by a sudden
RPM loss/no start symptom and Wrench Light ON with P1A0C set. Vehicles typically exhibit this symptom on the first start of the morning or after
an extended idle. This symptom will clear on the next key cycle.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify customer concern.
2. Connect IDS to vehicle, access and monitor the LOSSTRT PID in the PCM.
a. If the LOSSTRT PID indicates YES go to STEP 3.
b. If the LOSSTRT PID indicates NO the DTC P1A0C may be the result of a 12 volt system fault. Performing the calibration update in STEP 3 will
not correct a 12 volt system fault. Perform Workshop Manual diagnostic procedure for DTC P1A0C - HYBRID POWERTRAIN CONTROL
MODULE - ENGINE DISABLED (PDF) located on MS3.
3. Reboot the IDS to clear memory before reprogramming.
4. Using IDS 62.10 or later software, reprogram the PCM to the latest calibration (refer to "Calibration Information" table) by following the "Module
Reprogramming" procedure. Calibration files are not included on DVD 2009.7.
NOTE:
^ Always update the IDS tool first, then follow on-screen instructions to download the needed calibration file for PCM reprogramming.
^ It is not necessary to remove any fuses or relays during PCM reprogramming when the IDS screen prompts you to do so. You may accidentally stop
power to one of the PCM terminals and cause the PCM to be blanked, or you may receive error messages during the IDS reprogramming procedure.
^ IDS shows the calibration part numbers after programming the PCM.
^ Please be aware that PCM calibration part numbers and file names listed in any Service Bulletin may change due to future releases of IDS software,
and additional revisions made to those calibrations for service related concerns.
^ When reprogramming a PCM, IDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has been
revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.
^ When performing this procedure, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum charge of no
more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it could damage the VCM.
5. Turn the key off to re-initialize the PCM. This will allow the sludge compensation strategy to learn.
6. With the vehicle in park or neutral and the climate control system set to DEFROST, start the engine and allow it to reach normal operating
temperature [greater than 170F (77C) coolant temperature]. Run it an additional 5 minutes to allow sufficient learning time.
