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STR-12 < BASIC INSPECTION > DIAGNOSIS AND REPAIR WORKFLOW Perform the starting system test with Multitasking battery and electrical diagnostic station GR8-1200 NI. For details and operating instructions, refer to diagnostic station Instruction Manual. CRANKING NORMAL>>GO TO 2. LOW VOLTAGE>>GO TO 5. CHARGE BATTERY>>Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Perform battery test again. Refer to diagnostic station instruction manual. REPLACE BATTERY>>Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again. Refer to diagnostic station instruction manual. If second test result is “REPLACE BATTERY”, then do so. Perform battery test again to confirm repair. 2. CRANKING CHECK Check that the starter motor operates properly. YES >> GO TO 3. NO >> GO TO 4. 3. ENGINE START CHECK Check that the engine starts. YES >> Inspection End. NO >> Perform further diagnosis of engine mechanical or engine control system. Refer to EM and EC sections. Once resolved, perform battery test again. 4. STARTER MOTOR ACTIVATION Check that the starter motor operates. YES >> Check ring gear and starter motor drive pinion. Once resolved, perform battery test again. NO >> GO TO 7. 5. COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE Compare the engine coolant temperature and verify the cranking voltage is within specifications. Minimum Specification of Cranking Voltage Referencing Coolant Temperature Is the voltage less than the specified value? YES >> GO TO 7. NO >> GO TO 6. 6. STARTER OPERATION Check the starter operation. YES >> Inspection End. NO >> GO TO 7. 7. “B” TERMINAL CIRCUIT INSPECTION Check “B” terminal circuit. Refer to . Is “B” terminal circuit normal? YES >> GO TO 8. NO >> Repair as needed. 8. “S” CONNECTOR CIRCUIT INSPECTION Check “S” connector circuit. Refer to . Engine coolant temperature [ °C (°F)] Voltage [V] −30 to −20 (−22 to −4) 8.6 −19 to −10 (−2 to 14) 9.1 −9 to 0 (16 to 32) 9.5 More than 1 (More than 34) 9.9 |