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DAS U1A48-00 ECM COMMUNICATION DAS-273 < DTC/CIRCUIT DIAGNOSIS > [CHASSIS CONTROL] C D E F G H I J K L M B N P A YES >> GO TO 5. NO >> Recheck terminals for damage or loose connection. Refer to LAN-7, "Precautions for Harness , and GO TO 5. 3. CHECK ECM (1) 1. Turn the ignition switch OFF. 2. Disconnect the ECM harness connector. 3. Check the ECM harness connector terminals (CAN communication line) or damage or loose connection. Is the inspection result normal? YES >> GO TO 4. NO >> Recheck terminals for damage or loose connection. Refer to LAN-7, "Precautions for Harness , and GO TO 4. 4. CHECK ECM (2) With CONSULT 1. Connect the ECM harness connector. 2. Connect the chassis control module harness connector. 3. Erase self-diagnosis result for “ENGINE”. 4. Turn the ignition switch OFF and wait for 10 seconds or more. 5. Turn the ignition switch ON. 6. Perform self-diagnosis for “ENGINE”. Is DTC detected? YES >> Check the DTC. • QR25DE: Refer to . • R9M: Refer to . NO >> GO TO 5. 5. PERFORM SELF-DIAGNOSIS With CONSULT 1. Erase self-diagnosis result for “CHASSIS CONTROL”. 2. Turn the ignition switch OFF and wait for 10 seconds or more. 3. Turn the ignition switch ON. 4. Perform “All DTC Reading”. Are DTC “U1000-00”, “U1A48-00” or other DTC detected? YES (“U1000-00”)>>Refer to LAN-17, "Trouble Diagnosis Flow Chart" . YES (“U1A48-00”)>>Replace the chassis control module. Refer to DAS-278, "Removal and Installation" . YES (other DTC)>>Check the DTC. >> INSPECTION END |