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Hybrid Battery Control (P310): Wiring Lexus RX II рестайлинг

Charging System 10 illustrations ~3562 words

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A84. (See DTC P0A84 HYBRID BATTERY PACK COOLING FAN 1 CONTROL CIRCUIT LOW; DTC P0A85 HYBRID BATTERY PACK COOLING FAN 1 CONTROL CIRCUIT HIGH )

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  1. READ OUTPUT DTC Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CURRENT CODES. Read output DTCs. (See «DTC CHECK / CLEAR»(ref-283000-S21393782892008041400000) ) Result RESULT CHART DTC output Proceed to Either or both of P0A99 and P0A9A is/are output A 3 or more of P0A84, P0A85, P0A99, P0A9A, P0AD2 and P0AD3 are output B B: GO TO step 7 A: Go to next step
  2. CHECK BATTERY COOLING BLOWER ASSEMBLY CAUTION: Be sure to wear insulated gloves and protective goggles. Connect the intelligent tester to the DLC3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DATA LIST / VMF FAN VOLT 1 to 3 and BATT TEMPI to 8. HINT: Easier to see the change in the VMF FAN VOLT when displayed in the line chart. Perform a driving test and check that there is a malfunction in the VMF FAN VOLT 2 while the battery cooling blower No.2 is operating. (*1) HINT: The fan operates when the battery temperature is approximately 36°C (97°F) or more. Remove the battery cover and replace the battery cooling blower assembly No.2 with the battery cooling blower assembly No.1 or No.3. (See «BATTERY BLOWER»(ref-283000-S01672278962008041400000) ) Install the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Select the following menu items: DIAGNOSIS / OBD / MOBD / HV ECU / DATA LIST / VMF FAN VOLT 1 to 3 and BATT TEMP 1 to 8. HINT: Easier to see the change in the VMF FAN VOLT when displayed in the line chart. Perform a driving test and check that the malfunction in (*1) is reproduced in the battery cooling blower No.1 or No.3. Standard: The malfunction is reproduced in another battery cooling blower. HINT: The battery cooling blower operates when the battery temperature is approximately 36°C (97°F) or more. YES: REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO.2) NO: Go to next step
  3. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Disconnect the 2D connector from the engine room J/B No.2. Disconnect the B23 battery blower assembly (No.2) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine room J/B No.2 (2D-1) - Battery cooling blower assembly (No.2) (B23-1) Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY - BATTERY SMART UNIT) CAUTION: Be sure to wear insulated gloves and protective goggles. Disconnect the B28 connector from the battery smart unit. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.2) (B23-2) - VM1 (B28-4) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.2) (B23-2) - Body ground 10 kohms or more NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY (NO.2) - BODY GROUND) CAUTION: Be sure to wear insulated gloves and protective goggles. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.2) (B23-4) - Body ground 10 kohms or more NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY (NO.2) - HV CONTROL ECU) CAUTION: Be sure to wear insulated gloves and protective goggles. Disconnect the H30 connector from the HV control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.2) (B23-3) - SI1 (H30-14) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.2) (B23-3) - Body ground 10 kohms or more OK: GO TO step 17 NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  7. CHECK FUSE (BATT FAN) Remove the BATT FAN fuse from the engine room R/B No.4. Check the continuity of the BATT FAN fuse. Standard Resistance: Below 1 ohms NG: GO TO step 14 OK: Go to next step
  8. CHECK MODE MONITOR TERMINAL (BATT FAN RELAY) Preparation Connect the connector. Remove the cover of the fusible link block assembly. Set the vehicle to the following condition. Ignition switch ON. Headlight dimmer switch LO. Check voltage Measure the voltage between the Mode Monitor Terminal and body ground. Standard Voltage VOLTAGE SPECIFICATION Result Proceed to 0 V or Approx. 12 V A Approx. 6.2 V B Approx. 2.0 V C B: GO TO step 11 C: GO TO step 12 A: Go to next step
  9. CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B NO.2 - MODE MONITOR TERMINAL) Disconnect the 2G connector from the engine room J/B No.2. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition 2G-5 - Mode monitor terminal Always Below 1 ohms 2G-5 - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  10. INSPECT ENGINE ROOM J/B NO.2 (BATT FAN RELAY) Turn the ignition switch to the OFF position. Remove the engine room J/B No.2. Connect the positive battery lead to terminal BFB of the engine room J/B No.2 and the negative lead to terminal SGND, PGND. TERMINALS CONNECTION REFERENCE Symbols (terminals No.) Connection BFB (2E-2) - SGND (2N-13) and PGND (2F-1) Positive - Negative Measure the voltage according to the value(s) in the table below. Standard Voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition BFL (2D-1) - Battery negative terminal Below 1 V Connect the battery negative lead to terminal FCTL1 of the engine J/B No.2. TERMINALS CONNECTION REFERENCE Symbols (terminals No.) Connection FCTL (2G-6) Negative Measure the voltage according to the value(s) in the table below. Standard Voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition BFL (2D-1) - Battery negative terminal 10 to 14 V NG: REPLACE ENGINE ROOM J/B NO.2 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATT FAN FUSE) Disconnect the 2E connector from the engine room J/B No.2. Remove the BATT FAN fuse from the engine room R/B No.4. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2E-2) - Engine Room R/B No.4 BATT FAN fuse terminal 2. Below 1 ohms NOTE: When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  12. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. Disconnect the 2D connector from the engine room J/B No.2. Disconnect each of the 3 battery cooling blower assembly (No.1, No.2 and No.3) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2D-1) - Battery cooling blower (1) Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  13. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - HV CONTROL ECU) Disconnect the 2G connector from the engine room J/B No.2. Disconnect the H34 connector from the HV control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2G-6) - FCTL (H34-9) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (26-6) - Body ground 10 kohms or higher OK: GO TO step 17 NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  14. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATT FAN FUSE) Disconnect the 2E connector from the engine room J/B No.2. Remove the BATT FAN fuse from the engine room R/B No.4. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2E-2) - Body ground 10 kohms or higher NOTE: When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  15. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Disconnect the 2D connector from the engine room J/B No.2. Disconnect each of the 3 battery blower assembly (No.1, No.2 and No.3) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2D-1) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  16. INSPECT BATTERY COOLING BLOWER ASSEMBLY CAUTION: Be sure to wear insulated gloves and protective goggles. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (1) - Body ground 10 kohms or higher NG: REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO.2) OK: REPLACE ENGINE ROOM J/B NO.2
  17. INSPECT HYBRID VEHICLE CONTROL ECU HINT: By using the oscilloscope function in the intelligent tester, inspection of the function between the HV control ECU and battery smart unit can be conducted. Install the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Using an oscilloscope, measure the waveform according to the condition in the table below. TERMINAL CONDITION CHART Item Contents Terminal SI1 (H30-14) - E01 (H32-7) Equipment Setting 1V/DIV, 50 μs/DIV Condition Ignition switch ON or READY-on state Standard: The waveform in the illustration can be measured. HINT: A and B in the DUTY waveform shown in the illustration vary depending on the cooling fan mode. Duty command value is influenced by variance in fan motors and the change of power supply voltage. Measure when the vehicle comes to a stop and an idling stop. NG: REPLACE HYBRID VEHICLE CONTROL ECU OK: REPLACE BATTERY SMART UNIT

Refer to the wiring diagram for DTC P0AC0 (See WIRING DIAGRAM )

Refer to wiring diagram to DTC P0A84. (See DTC P0A84 HYBRID BATTERY PACK COOLING FAN 1 CONTROL CIRCUIT LOW; DTC P0A85 HYBRID BATTERY PACK COOLING FAN 1 CONTROL CIRCUIT HIGH )

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  1. READ OUTPUT DTC Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CURRENT CODES. Read output DTCs. (See «DTC CHECK / CLEAR»(ref-283000-S21393782892008041400000) ) Result RESULT CHART DTC output Proceed to Either or both of P0AD2 and P0AD3 is/are output A 3 or more of P0A84, P0A85, P0A99, P0A9A, P0AD2 and P0AD3 are output B B: GO TO step 7 A: Go to next step
  2. CHECK BATTERY COOLING BLOWER ASSEMBLY CAUTION: Be sure to wear insulated gloves and protective goggles. Connect the intelligent tester to the DLC3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DATA LIST / VMF FAN VOLT 1 to 3 and BATT TEMP 1 to 8. HINT: Easier to see the change in the VMF FAN VOLT when displayed in the line chart. Perform a driving test and check that there is a malfunction in the VMF FAN VOLT 3 while the battery cooling blower No.3 is operating. (*1) HINT: The fan operates when the battery temperature is approximately 36°C (97°F) or more. Remove the battery cover and replace the battery cooling blower assembly No.3 with the battery cooling blower assembly No.1 or No.2. (See «BATTERY BLOWER»(ref-283000-S01672278962008041400000) ) Install the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Select the following menu items: DIAGNOSIS / OBD/MOBD / HV ECU / DATA LIST / VMF FAN VOLT 1 to 3 and BATT TEMP 1 to 8. HINT: Easier to see the change in the VMF FAN VOLT when displayed in the line chart. Perform a driving test and check that a malfunction in (*1) is reproduced in the battery cooling blower No.1 or No.2. Standard: The malfunction is reproduced in another battery cooling blower. HINT: The battery cooling blower operates when the battery temperature is approximately 36°C (97°F) or more. YES: REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO.3) NO: Go to next step
  3. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Disconnect the 2D connector from the engine room J/B No.2. Disconnect the B25 battery blower assembly (No.3) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine room J/B No.2 (2D-1) - Battery cooling blower assembly (No.3) (B25-1) Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY - BATTERY SMART UNIT) CAUTION: Be sure to wear insulated gloves and protective goggles. Disconnect the B28 connector from the battery smart unit. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.3) (B25-2) - VM2 (B28-5) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.3) (B25-2) - Body ground 10 kohms or more NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY - BODY GROUND) CAUTION: Be sure to wear insulated gloves and protective goggles. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.3) (B25-4) - Body ground 10 kohms or more NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY (NO.3) - HV CONTROL ECU) CAUTION: Be sure to wear insulated gloves and protective goggles. Disconnect the H30 connector from the HV control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.3) (B25-3) - SI2 (H30-13) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (No.3) (B25-3) - Body ground 10 kohms or more OK: GO TO step 17 NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  7. CHECK FUSE (BATT FAN) Remove the BATT FAN fuse from the engine room R/B No.4. Check the continuity of the BATT FAN fuse. Standard Resistance: Below 1 ohms NG: GO TO step 14 OK: Go to next step
  8. CHECK MODE MONITOR TERMINAL (BATT FAN RELAY) Preparation Connect the connector. Remove the cover of the fusible link block assembly. Set the vehicle to the following condition. Ignition switch ON. Headlight dimmer switch LO. Check voltage Measure the voltage between the Mode Monitor Terminal and body ground. Standard Voltage VOLTAGE SPECIFICATION Result Proceed to 0 V or Approx. 12 V A Approx. 6.2 V B Approx. 2.0 V C B: GO TO step 11 C: GO TO step 12 A: Go to next step
  9. CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B NO.2 - MODE MONITOR TERMINAL) Disconnect the 2G connector from the engine room J/B No.2. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition 2G-5 - Mode monitor terminal Always Below 1 ohms 2G-5 - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  10. INSPECT ENGINE ROOM J/B NO.2 (BATT FAN RELAY) Turn the ignition switch to the OFF position. Remove the engine room J/B No.2. Connect the positive battery lead to terminal BFB of the engine room J/B No.2 and the negative lead to terminal SGND, PGND. TERMINAL CONNECTION REFERENCE Symbols (terminals No.) Connection BFB (2E-2) - SGND (2N-13) and PGND (2F-1) Positive - Negative Measure the voltage according to the value(s) in the table below. Standard Voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition BFL (2D-1) - Battery negative terminal Below 1 V Connect the battery negative lead to terminal FCTL1 of the engine J/B No.2. TERMINAL CONNECTION REFERENCE Symbols (terminals No.) Connection FCTL (2G-6) Negative Measure the voltage according to the value(s) in the table below. Standard Voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition BFL (2D-1) - Battery negative terminal 10 to 14 V NG: REPLACE ENGINE ROOM J/B NO.2 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATT FAN FUSE) Disconnect the 2E connector from the engine room J/B No.2. Remove the BATT FAN fuse from the engine room R/B No.4. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2E-2) - Engine Room R/B No.4 BATT FAN fuse terminal 2. Below 1 ohms NOTE: When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  12. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. Disconnect the 2D connector from the engine room J/B No.2. Disconnect each of the 3 battery cooling blower assembly (No.1, No.2 and No.3) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2D-1) - Battery cooling blower (1) Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  13. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - HV CONTROL ECU) Disconnect the 2G connector from the engine room J/B No.2. Disconnect the H34 connector from the HV control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2G-6) - FCTL (H34-9) Below 1 ohms Standard Resistance (Check for short) RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2G-6) - Body ground 10 kohms or higher OK: GO TO step 17 NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  14. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATT FAN FUSE) Disconnect the 2E connector from the engine room J/B No.2. Remove the BATT FAN fuse from the engine room R/B No.4. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2E-2) - Body ground 10 kohms or higher NOTE: When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  15. CHECK HARNESS AND CONNECTOR (BATT FAN RELAY - BATTERY COOLING BLOWER ASSEMBLY) CAUTION: Be sure to wear insulated gloves and protective goggles. Remove the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Disconnect the 2D connector from the engine room J/B No.2. Disconnect each of the 3 battery blower assembly (No. 1, No.2 and No.3) connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Engine Room J/B No.2 (2D-1) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  16. INSPECT BATTERY COOLING BLOWER ASSEMBLY CAUTION: Be sure to wear insulated gloves and protective goggles. Measure the resistance according to the value(s) in the table below. Standard Resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery cooling blower assembly (1) - Body ground 10 kohms or higher NG: REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO.3) OK: REPLACE ENGINE ROOM J/B NO.2
  17. INSPECT HYBRID VEHICLE CONTROL ECU HINT: By using the oscilloscope function in the intelligent tester, inspection of the function between the HV control ECU and battery smart unit can be conducted. Install the battery cover. (See «HV BATTERY»(ref-283000-S04056073892008041400000) ) Using an oscilloscope, measure the waveform according to the condition in the table below. WAVEFORM REFERENCE Item Contents Terminal SI2 (H30-13) - E01 (H32-7) Equipment Setting 1V/DIV, 50 μs/DIV Condition Ignition switch ON or READY-on state Standard: The waveform in the illustration can be measured. HINT: A and B in the DUTY waveform shown in the illustration vary depending on the cooling fan mode. Duty command value is influenced by variance in fan motors and the change of power supply voltage. Measure when the vehicle comes to a stop and an idling stop. NG: REPLACE HYBRID VEHICLE CONTROL ECU OK: REPLACE BATTERY SMART UNIT

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