P0A92-261

P112 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0A92-261: Hybrid Generator Performance

DTC P0A92-261 - Hybrid Generator Performance

DESCRIPTION

When three-phase alternating current flows through the three-phase windings of the stator coil, a rotating magnetic field is generated in the motor. The system controls the rotating magnetic field in accordance with the rotating position and speed of the rotor. As a result, the permanent magnets provided on the rotor are pulled in the rotating direction, which cause the generation of torque.
The generated torque is practically proportionate to the amount of current. Therefore, the system controls the speed of the motor by regulating the frequency of the alternating current. Furthermore, the system properly controls the rotating magnetic field and the angle of the rotor magnets in order to generate high torque in an efficient manner, even at high speeds.










MONITOR DESCRIPTION

The HV control ECU monitors the hybrid vehicle generator (MG1). If the HV control ECU detects a reduction in the magnetic force of the MG1 or an in-phase short, it interprets this as a MG1 failure. The HV control ECU then illuminates the MIL and sets a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





INSPECTION PROCEDURE

PROCEDURE

1. READ OUTPUT DTC (HV ECU)
(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 if DTCs are output.
Result:
DTC except P0A92 (INF 261) and P0A7A (INF 325, 517, 518) are output
HINT: If any other codes besides P0A92 (INF 261) are output, perform troubleshooting for those DTCs first.

YES -- GO TO RELEVANT DTC CHART
NO -- Continue to next step.

2. REPRODUCTION TEST
(a) Connect the Techstream to the DLC3.
(b) Leave the vehicle for 1 minute with the engine on (with the Generator rotating).
(c) Check for HV system DTCs by following the prompts on the tester screen.
Result:






A -- GO TO DTC CHART
B -- Continue to next step.

3. CHECK HYBRID VEHICLE GENERATOR ASSEMBLY
CAUTION: Wear insulated gloves before performing the following operation.
(a) Turn the power switch OFF.
(b) Remove the service plug grip Removal.
NOTE: Turning the power switch ON (READY) with the service plug grip removed could cause malfunction. Therefore, never turn the power switch ON (READY) in this state.




(c) Check if the three-phase alternating current cable installation bolts on the hybrid vehicle generator are tightened to the specified torque.
Torque: 8.0 Nm (82 kgf-cm, 71 in-lbf)
(d) Reinstall the inverter cover Installation.
(e) Reinstall the service plug grip Installation.
NG -- TIGHTEN THEM TO SPECIFIED TORQUE
OK -- REPLACE HYBRID VEHICLE GENERATOR ASSEMBLY