P0A97

HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0A97-123: Hybrid Battery Pack Cooling Fan 2 Performance / Stuck OFF
P0A97-123 - Hybrid Battery Pack Cooling Fan 2 Performance / Stuck OFF

DESCRIPTION

Refer to the description for DTC P0A99-123 P0A99.





WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A99-123 P0A99.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTCS (DTC P0A1F-123 IS OUTPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(d) Check if DTCs are output.

Result





B -- GO TO DTC CHART (P0A1F-123) Hybrid Battery System
A -- Continue to next step.

2. CHECK REAR COOLING UNIT P0A82

NG -- GO TO AIR CONDITIONING SYSTEM Symptom Related Diagnostic Procedures
OK -- Continue to next step.

3. PERFORM ACTIVE TEST USING TECHSTREAM (HV BATTERY COOL DOWN SERVO MOTOR) P0A82

NG -- GO TO AIR CONDITIONING SYSTEM Symptom Related Diagnostic Procedures
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (NO. 1 BATTERY PACK WIRE CONNECTOR [A SIDE] - HYBRID VEHICLE CONTROL ECU)

(a) Disconnect the zR3 No. 1 battery pack wire connector.





HINT
For the removal and installation procedures related to the No. 1 battery pack wire connector inspection, Removal.

(b) Disconnect the A75 hybrid vehicle control ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. INSPECT HYBRID VEHICLE CONTROL ECU (GND SHORT)

(a) Connect connector A75 to the hybrid vehicle control ECU.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE HYBRID VEHICLE CONTROL ECU Removal
OK -- Continue to next step.

6. CHECK DUCT AND BLOWER

CAUTION:
Be sure to wear insulated gloves.

(a) Remove the HV battery Removal.





(b) Check if the HV battery intake ducts and battery cooling blower assembly (for lower side) are disconnected, damaged, or clogged with foreign objects.

HINT
For the removal and installation procedures related to the HV battery intake duct and battery cooling blower assembly (for lower side), Removal.

OK:

The ducts and blower are not disconnected, damaged, or clogged with foreign objects.

NG -- REPAIR OR REPLACE DUCT OR BLOWER Removal
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (NO. 1 BATTERY PACK WIRE CONNECTOR [B SIDE] - BATTERY COOLING BLOWER [FOR LOWER SIDE])

CAUTION:
Be sure to wear insulated gloves.

(a) Disconnect the z77 battery cooling blower assembly (for lower side) connector.





HINT
For the removal and installation procedures related to the battery cooling blower assembly (for lower side) connector inspection, Removal.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

8. CHECK BATTERY COOLING BLOWER ASSEMBLY (for Lower Side) (VM1 VOLTAGE)

CAUTION:
Be sure to wear insulated gloves.

(a) Place the HV battery in the vehicle so that measurements can be made at the battery cooling blower assembly (for lower side) connector.





NOTICE:
Make sure all the covers are installed to the HV battery when placing it in the vehicle, and then remove the covers again after the HV battery is in place.

HINT
- Follow the installation procedures to the point where the HV battery is set in the vehicle Installation.
- Do not install the service plug grip.

(b) Reconnect all the connectors that were disconnected when the HV battery was removed.

(c) Connect the Techstream to the DLC3.

(d) Turn the power switch on (IG).

(e) Select the following menu items: Powertrain / Hybrid Control / Data List / VMF Fan Motor Voltage 2.

(f) Using a service wire, connect terminals z77-3 (SI1) and z77-4 (GND1) of the battery cooling blower assembly (for lower side) connector.

CAUTION:
Do not touch the fan while it is operating.

(g) While the battery cooling blower assembly (for lower side) is operating, compare the value in the data list ("VMF Fan Motor Voltage 2") with the voltage value that was actually measured at the battery cooling blower assembly (for lower side) connector.

OK:





HINT
- When the battery smart unit is functioning normally, it will control the voltage to within 1 V of the actual measurement value.
- Perform this inspection with the battery cooling blower assembly (for lower side) connector connected.
- If the power switch is turned on (IG) with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be set. If this DTC is output, clear the DTC using the Techstream Hybrid Battery System.

NG -- REPLACE BATTERY SMART UNIT Removal

OK -- REPLACE BATTERY COOLING BLOWER ASSEMBLY (for Lower Side) Removal