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SJC8A00J00050600000BBAT00 Troubleshooting CAN Circuit Related Problems Using the HDS (Preferred method) Without HDS (Use only if the HDS is unavailable) 22-80 Multiplex Integrated Control System General Troubleshooting Information NOTE: Check the PCM for DTCs and troubleshoot PCM (see page 11-3) or F-CAN loss of communication errors first. 1. Go to B-CAN System Diagnosis Test Mode A to check for ‘‘Connected units’’ and DTCs (see page 22-99). 2. If no DTCs are retrieved, go to B-CAN System Diagnosis Test Mode C (see page 22-101) or D (see page 22-102). 1. Check for communication circuit problems using B-CAN System Diagnostic Test Mode 1 and Mode 2 (see page 22-103). 2. Check for DTCs (see page 22-103). 3. Sort, and then troubleshoot the DTCs in the order. –1 Battery voltage DTCs (beginning with the lowest number first; for example, if B1006 and B1059 are retrieved, troubleshoot B1006 –4 Signal error DTCs 4. If no DTCs are retrieved, use B-CAN System Diagnostic Test Mode 2 to check all inputs related to failure (see page 22-103). |