Part 2

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

9. 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 connectors of the HV battery assembly from the hybrid battery junction block assembly.

NOTICE:
Be sure to set 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

NOTICE:
- Inspect the hybrid battery junction block assembly being installed to the hybrid battery cover sub-assembly upper.
- An electrical charge may remain in the noise filter capacitor installed to the hybrid battery assembly after the inspection. Wait for 10 seconds after the inspection and ensure that voltage between terminals N3-1 (CEI) and N4-1 (CBI) of the hybrid battery junction block assembly and body ground is 1 V or less.

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

10. CHECK HV BATTERY 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 connector z22 from the battery smart unit.

(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 HV BATTERY ASSEMBLY Components

OK -- REPLACE BATTERY SMART UNIT Components

11. CHECK INVERTER WITH CONVERTER ASSEMBLY

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 connector cover assembly 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 generator cable z10 from the inverter with converter assembly.

(e) Disconnect the motor cable z8 from the inverter with converter assembly.

(f) 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

HINT
Perform this inspection with the motor cable and generator cable disconnected from the inverter with converter assembly.

NG -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components

OK -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

12. 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 connector cover assembly 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 generator cable z10 from the inverter with converter assembly.

(e) Disconnect the motor cable z8 from the inverter with converter assembly.

(f) 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 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.

14. CHECK HIGH VOLTAGE DIRECT CURRENT AREA

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 frame wire N1 from the inverter with converter assembly.

HINT
Make sure that no foreign objects have entered or contaminated the connector of the frame wire N1.

(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 FRAME WIRE
OK -- Continue to next step.

15. CHECK NO. 2 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. 2 engine wire (air conditioning harness) D2 from the inverter with converter assembly.

HINT
Make sure that no foreign objects have entered or contaminated the connector of the No. 2 engine wire (air conditioning harness) D2.

(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 NO. 2 ENGINE WIRE

OK -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components

16. CHECK NO. 2 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. 2 engine wire (air conditioning harness) D1 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. 2 ENGINE WIRE

OK -- GO TO DTC CHART (AIR CONDITIONING SYSTEM (P0AA6-611)) Air Conditioning System

17. CHECK FRAME 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 frame wire N3 and N4 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:

Text in Illustration

NG -- REPLACE FRAME WIRE Components
OK -- Continue to next step.

18. CHECK HYBRID VEHICLE 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 connector z26, z27 and z28 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 VEHICLE CONVERTER Components

OK -- REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Components