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

HINT
Make sure that no foreign objects have entered or contaminated the inverter with converter assembly.

(d) Disconnect the motor cable z38 and generator cable z36 from the inverter with converter assembly.

(e) 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 -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

11. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE)

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

HINT
Make sure that no foreign objects have entered or contaminated the inverter with converter assembly.

(d) Disconnect the motor cable z38 and generator cable z36 from the inverter with converter assembly.

(e) 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.

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) e5 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) Air Conditioning System

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 Components

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