DESCRIPTION
The MG ECU, which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if the system is malfunctioning. If any of the following DTCs are output, replace the inverter with converter assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0A1C-710 | Drive Motor "B" Control Module | MG ECU internal malfunction: Calculation check error (1 trip detection logic) | Inverter with converter assembly | Comes on | Master Warning Light: Comes on |
P0A1C-797 | Drive Motor "B" Control Module | MG ECU internal malfunction: R/D converter communication error (1 trip detection logic) | Inverter with converter assembly | Comes on | Master Warning Light: Comes on |
P1C2C-706 | Drive Motor "B" A/D Converter Circuit | MG ECU internal malfunction: CPU ROM-RAM error (1 trip detection logic) | Inverter with converter assembly | Comes on | Master Warning Light: Comes on |
P1CA8-708 | Drive Motor "B" Control Module Malfunction | MG ECU internal malfunction: CPU ROM-RAM error (1 trip detection logic) | Inverter with converter assembly | Comes on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P0A1C-797 | Rear Motor Revolution |
P0A1C-710 P1C2C-706 P1CA8-708 | - |
MONITOR DESCRIPTION
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the MG ECU checks the result of the rear motor CPU self-test. If the MG ECU detects a "Fail" from the rear motor CPU self-test, it will conclude that there is an internal malfunction in the rear motor CPU and the hybrid vehicle control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0A1C (INF 710): MG CPU ALU malfunction P0A1C (INF 797): R/D converter communication error P1C2C (INF 706): A/D malfunction (3GM CPU) P1CA8 (INF 708): RAM and ROM destruction |
Required sensors/components | Inverter with converter assembly (MG ECU) |
Frequency of operation | Continuous |
Duration | TMC's intellectual property |
MIL operation | 1 driving cycle |
Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored | TMC's intellectual property |
Other conditions belong to TMC's intellectual property | - |
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property | - |
COMPONENT OPERATING RANGE
Hybrid vehicle control ECU | DTC P0A1C (INF 710/797) is not detected DTC P1C2C (INF 706) is not detected DTC P1CA8 (INF 708) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
Click here
NEXT | COMPLETED |