DTC Summary
WARNING: This page is about a different variant/trim than selected.
- MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects a power supply malfunction.
The cause of this malfunction may be one of the following:
Inverter voltage sensor (VH) internal circuit malfunction
- Voltage sensor (VH) malfunction
- Motor generator control ECU (MG ECU) malfunction
- Communication (wire harness) malfunction
High voltage system malfunction
- HV battery malfunction
- HV battery junction block assembly malfunction
- Inverter with converter assembly malfunction
- High-voltage wire harness malfunction
- High-voltage connector or connection malfunction
Low-voltage circuit (12 V) malfunction
- Hybrid vehicle control ECU malfunction
- HV battery junction block assembly malfunction
- Low voltage wire harness malfunction
- Low voltage connector malfunction
- INSPECTION DESCRIPTION
System Diagram Range Inspection Content Reason Inspection Step *a Check connection condition and wire harness continuity between hybrid vehicle control ECU and HV battery junction block assembly Check whether connectors are connected properly and check for an open circuit in the SMRP and SMRB primary lines 3 to 7 *b Check system main relay Check whether SMRB and SMRP stuck OFF 8, 9 *c Check connection condition and high-voltage cable continuity between HV battery junction block assembly and inverter with converter assembly Check for open circuit and defective connection (arc marks) due to looseness 10 to 12 *d Check high-voltage cable and connection condition between HV battery and HV battery junction block assembly Check for open circuit and defective connection (arc marks) due to looseness 13 to 17 *e Check HV battery Check whether HV battery voltage has drastically dropped below normal range 18
