Auto Repairing 2002 Toyota Camry LE Ecm Reprogram Procedure
1. Check for the Authorized Modification Label affixed to the vehicle in the location shown in Fig. 3. If there is no label present, proceed to step 2. 2. Connect the Diagnostic Tester to the vehicle and select “CURRENT ECU CAL” from the “ECU REPROGRAM MAIN MENU.” To determine the vehicle’s current ECM (PCM) calibration, see Fig. 1 below. 3. Remove the 10A ECU-IG fuse from the instrument panel Junction Block (refer to Fig. 2 for location). This action prevents possible activation of the ABS relay, resulting in ECM Reprogramming failure. NOTE: ECU damage may occur if the 10A fuse is NOT removed. NOTE: A battery charger MUST be connected to the battery and set at a medium charge setting during the Flash Reprogram procedure in order to maintain proper battery voltage and prevent damage to the ECM (PCM). 4. Proceed to Flash Reprogram the ECM (PCM) by following the procedures in TSB No. SS002-01 titled “ECU Flash Reprogramming Process,” for 2001 and later applicable models.
NOTE: Errors during the flash reprogramming process can PERMANENTLY DAMAGE the vehicle’s ECM (PCM). In order to minimize this risk follow the steps below: Make sure that the current battery voltage is no less than 11.4 volts. Install abattery charger and set on a low setting to assure that the battery voltage DOES NOT FALL BELOW 11.4 VOLTS during the reprogramming. If battery’s state of charge is in question, test with SST No. 00002- MP815-L, “Midtronics Battery Tester.” Confirm that the engine hood is up, parking brake is set and all accessories are OFF (i.e., audio system, A/C, interior lights, headlights, etc.). DO NOT perform the reprogramming process until the engine room temperature is 158° (70° or less. F C)
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