Part 2

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0AA6-526,P0AA6-611,P0AA6-612,P0AA6-613,P0AA6-614,P0AA6-655: Hybrid Battery Voltage System Isolation Fault
P0AA6-655 - Hybrid Battery Voltage System Isolation Fault

12. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR CABLE)

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components
OK -- Continue to next step.

13. CHECK REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the No. 3 wire frame (three-phase AC cable for MGR) g4 from the inverter with converter assembly.

HINT
Make sure that no foreign objects have entered or contaminated the connector of the No. 3 wire frame g4.

(c) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- CHECK REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY
OK -- Continue to next step.

14. CHECK HIGH VOLTAGE DIRECT CURRENT AREA

CAUTION:
Be sure to wear insulated gloves.

(a) Turn the power switch off.

(b) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(c) Disconnect the No. 3 wire frame g1 from the inverter with converter assembly.

HINT
Make sure that no foreign objects have entered or contaminated the connector of the No. 3 wire frame g1.

(d) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- CHECK NO. 3 WIRE FRAME
OK -- Continue to next step.

15. CHECK NO. 4 ENGINE WIRE

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the No. 4 engine wire (air conditioning harness) e4 from the inverter with converter assembly.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- CHECK NO. 4 ENGINE WIRE

OK -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components

16. CHECK NO. 4 ENGINE WIRE

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the No. 4 engine wire (air conditioning harness) e3 from the compressor with motor assembly.

Text in Illustration

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 4 ENGINE WIRE

OK -- AIR CONDITIONING SYSTEM (P0AA6-611)

17. CHECK NO. 3 WIRE FRAME

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the No. 3 wire frame g2 and g3 from the hybrid battery junction block assembly.

HINT
For the removal and installation procedures related to the No. 3 wire frame, Components.

(c) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

NG -- REPLACE NO. 3 WIRE FRAME Components
OK -- Continue to next step.

18. CHECK POWER STEERING CONVERTER ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the connector of the No. 3 wire frame (high voltage wire of the power steering converter) g6 from the hybrid battery junction block assembly.

(c) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

NG -- CHECK NO. 3 WIRE FRAME (HYBRID BATTERY JUNCTION BLOCK - POWER STEERING CONVERTER)

OK -- REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Components

19. CHECK NO. 3 WIRE FRAME (HYBRID BATTERY JUNCTION BLOCK - POWER STEERING CONVERTER)

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the connector of the No. 3 wire frame g7 from the power steering converter assembly.

(c) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

NG -- REPLACE NO. 3 WIRE FRAME Components

OK -- REPLACE POWER STEERING CONVERTER ASSEMBLY

20. CHECK INVERTER WITH CONVERTER ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Remove the inverter terminal cover from the inverter with converter assembly.

HINT
Make sure that no foreign objects have entered or contaminated the connector of the No. 3 wire frame.

(d) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

NG -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components
OK -- Continue to next step.

21. CHECK REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the No. 3 wire frame (three-phase AC cable for MGR) g5 from the rear traction motor with transaxle assembly.

NOTICE:
- Wrap terminals R-U, R-V, and R-W of the No. 3 frame wire (three-phase AC cable for MGR) on the inverter with converter assembly side with insulating tape to prevent them from shorting to ground.
- Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 3 WIRE FRAME Components
OK -- Continue to next step.

22. CHECK EXTENSION WIRE ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Remove the rear traction motor with transaxle assembly Components.

(c) Remove the extension wire assembly from the rear traction motor with transaxle assembly Components.

(d) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

Text in Illustration

NG -- REPLACE EXTENSION WIRE ASSEMBLY Components

OK -- REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Components

23. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the high voltage cable connector of the HV battery z19 and z22 from the hybrid battery junction block assembly.

NOTICE:
Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

Standard Resistance:

NG -- REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Components
OK -- Continue to next step.

24. CHECK NO. 2 HV BATTERY PACK CABLE

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Remove the No. 2 HV battery cable Components.

(c) Visually check that there is no scratched or peeling insulation on the No. 2 main battery cable.

OK:

There are no insulation defects (scratched or peeling insulation).

NG -- REPLACE NO. 2 HV BATTERY PACK CABLE Components
OK -- Continue to next step.

25. CHECK ELECTRIC VEHICLE BATTERY PLUG ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Remove the electric vehicle battery plug assembly Components.

(c) Visually check that there is no scratched or peeling insulation on the electric vehicle battery plug assembly.

OK:

There are no insulation defects (scratched or peeling insulation).

NG -- REPLACE ELECTRIC VEHICLE BATTERY PLUG ASSEMBLY Components

OK -- REPLACE HV BATTERY Components