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SYMPTOM TROUBLESHOOTING 04-03–9 04-03 NO.2 ANY OF THE FOLLOWING LIGHTS REMAIN ON: (ABS WARNING LIGHT, BRAKE SYSTEM WARNING id040300803700 Diagnostic procedure End Of Sie 2 Any of the following lights remain on: (ABS warning light, BRAKE system warning light, DSC [TROUBLESHOOTING HINTS] • Brake fluid amount is low • Parking brake does not release • No connection at DSC HU/CM connector (When DSC HU/CM connector is disconnected, ABS warning light and BRAKE system warning light illuminate) • DSC HU/CM detected malfunction (Input and output device malfunction) • DSC HU/CM detects low voltage in power supply • DSC HU/CM ground malfunction (When DSC HU/CM ground is not securely connected, ABS warning light and BRAKE system warning light • DSC HU/CM does not operate (DSC HU/CM malfunction) STEP INSPECTION ACTION 1 INSPECT BRAKE FLUID AMOUNT AND • Is the brake fluid amount normal? • Is the parking brake lever released? Yes Go to the next step. No Add brake fluid or release parking brake lever. 2 INSPECT DTCS IN INSTRUMENT CLUSTER • Inspect the DTC for the instrument cluster ON-BOARD DIAGNOSTIC SYSTEM. • Has DTC U2064 been recorded in memory? Yes Go to the next step. No Inspect the instrument cluster. 3 INSPECT DTCS IN DSC HU/CM • Inspect the DTC for the DSC ON-BOARD DIAGNOSTIC SYSTEM. • Have DTCs been stored in memory? Yes Perform inspection using appropriate DTC. No Go to the next step. 4 INSPECT WHETHER MALFUNCTION IS IN • Do the ABS warning light and BRAKE system warning light go out after 4 s when Yes Temporary poor connection in control module connector. No Go to the next step. 5 INSPECT BATTERY • Is the battery voltage normal? Yes Go to the next step. No Inspect the battery and charging system. 6 INSPECT CHARGING SYSTEM • Is the battery voltage normal with electrical load (A/C, headlight, etc.) on and engine Yes Go to the next step. No Inspect the charging system (drive belt tension, generator, 7 VERIFY THAT DSC HU/CM CONNECTOR IS • Is the DSC HU/CM securely connected? Yes Go to the next step. No Connect the DSC HU/CM connector securely, then go to the 8 VERIFY THAT DSC HU/CM CONNECTOR • Are the DSC HU/CM connector terminal or instrument cluster connector terminal etc. Yes Replace the DSC HU/CM. No Securely connect the DSC HU/CM connector terminal and 1871-1U-06B(04-03).fm 9 ページ 2006年3月15日 水曜日 午前11時12分 |