P0A82
HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0A82-123: Hybrid Battery Pack Cooling Fan 1
P0A82-123 - Hybrid Battery Pack Cooling Fan 1
DESCRIPTION
- Refer to the circuit description for DTC P0A84-123 P0A84.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P0A84-123 P0A84.
INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.
HINT
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
NOTICE:
After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.
PROCEDURE
1. CHECK FOR DTCS (DTC P0AFC-123 IS OUTPUT) P0A7F
B -- GO TO DTC CHART P0AFC-123
A -- Continue to next step.
2. CHECK DUCT AND BLOWER
(a) Remove the upper hybrid battery cover sub-assembly Removal.
(b) Check that the No. 1 hybrid battery intake duct and battery cooling blower are not disconnected, damaged, or clogged with foreign objects, and that the acoustical materials have not peeled.
OK:
The duct and blower are not disconnected, damaged, or clogged with foreign objects and the acoustical materials have not peeled.
Text in Illustration
(c) Install the upper hybrid battery cover sub-assembly Installation.
NG -- CORRECT THE PROBLEM
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER - POWER MANAGEMENT CONTROL ECU)
(a) Disconnect the cable from the negative (-) battery terminal.
(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 A21 from the power management control ECU Removal.
(d) Remove the No. 1 hybrid vehicle battery carrier bracket sub-assembly Removal.
(e) Disconnect connector S14 from the battery cooling blower assembly.
(f) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(g) Connect the battery cooling blower assembly connector.
(h) Install the No. 1 hybrid vehicle battery carrier bracket sub-assembly Installation.
(i) Connect the power management control ECU connector Installation.
(j) Connect the cable to the negative (-) battery terminal.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK POWER MANAGEMENT CONTROL ECU (GROUND SHORT CHECK)
(a) Remove the power management control ECU Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
(c) Install the power management control ECU Installation.
NG -- REPLACE POWER MANAGEMENT CONTROL ECU Components
OK -- Continue to next step.
5. READ VALUE USING TECHSTREAM
(a) Disconnect the cable from the negative (-) battery terminal.
(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 No. 1 hybrid vehicle battery carrier bracket sub-assembly Removal.
(d) Connect the cable to the negative (-) battery terminal.
(e) Connect the Techstream to the DLC3.
(f) Turn the power switch on (IG).
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.
- If the power switch is turned on (IG) with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be stored. If this DTC is output, clear the DTC using the Techstream Hybrid Battery System.
(g) Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.
NOTICE:
If the active test cannot be performed, skip it and proceed to the next step to check voltage. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.
(h) Enter the following menus: All Data / VMF Fan Motor Voltage 1.
(i) Select each air volume mode (1 to 6) in the "Driving the Battery Cooling Fan" active test to operate the battery cooling blower assembly.
(j) While the cooling fan is operating, compare the value in the data list (VMF Fan Motor Voltage 1) with the voltage value that was actually measured at the battery cooling blower assembly connector.
Standard:
Text in Illustration
HINT
Compare the values in each air volume mode (1 to 6). If the active test cannot be performed, compare the values only in the current air volume mode.
(k) Install the No. 1 hybrid vehicle battery carrier bracket sub-assembly Installation.
NG -- REPLACE BATTERY SMART UNIT Components
OK -- REPLACE BATTERY COOLING BLOWER ASSEMBLY Components