DTC SUMMARY
MALFUNCTION DESCRIPTION
If an overvoltage malfunction occurs in the motor inverter and generator inverter, the motor generator control ECU (MG ECU) detects the malfunction and stores this DTC. The cause of this malfunction may be one of the following:
DESCRIPTION
For a description of the inverter.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P1CB69E | Drive Motor "A" Inverter Voltage Sensor(VH) Stuck On | Motor inverter overvoltage signal detected (circuit malfunction) (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
MONITOR DESCRIPTION
If the motor inverter detects a circuit malfunction, it will transmit a motor inverter overvoltage signal to the motor generator control ECU. Upon receiving this signal, the motor generator control ECU will illuminate the MIL and set a DTC.
MONITOR STRATEGY
Related DTCs | P0A78 (INF P1CB69E): OVH detection (Circuit malfunction) |
Required sensors/components | Motor inverter |
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
Motor generator control ECU | DTC P0A78 (INF P1CB69E) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
[*1] to [*2]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
CAUTION / NOTICE / HINT
CAUTION:
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HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a | Without waiting for 10 minutes |
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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PROCEDURE
1. | CHECK DTC OUTPUT |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Result | Proceed to |
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P1CB69E only is output, or DTCs except the ones in the table below are also output. | A |
DTCs of hybrid control system in the table below are output. | B |
System | Relevant DTC | |
---|---|---|
Hybrid control system | P06881F | ECM/PCM Power Relay Sense Circuit Intermittent |
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
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2. | CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) |
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Result | Proceed to |
---|---|
OK | A |
NG (The connector is not connected securely.) | B |
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) | C |
A | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
B | CONNECT SECURELY |
C | REPAIR OR REPLACE HARNESS OR CONNECTOR |