DTC CHG_f069: Rapid Temperature Rise within Charger [09/2013 - ]: Procedure

WARNING: This page is about a different car, the 2014 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

CHECK COOLANT LEVEL AT RESERVOIR (FOR DRIVE UNIT)
1. Check the coolant level at reservoir (for drive unit). Refer to ON-VEHICLE INSPECTION [09/2013 - ] .
NG → See step 5

OK: Go to next step
PERFORM ACTIVE TEST USING RAV4 EV DIAGNOSTIC TOOL (WATER PUMP WITH MOTOR (FOR DRIVE UNIT))
1. Connect the RAV4 EV diagnostic tool to the No. 2 DLC3.
2. Turn the power switch on (READY).
3. Turn the RAV4 EV diagnostic tool on.
4. Enter the following menus: Pump Tool / Activate Pump and Valve Control / Powertrain Pump %.
5. Perform the "Powertrain Pump %" Active Test.
6. Enter the following menus: Pump Tool Monitor / Powertrain Pump.
7. Check the "Powertrain Pump" value when performing Activate Pump.
  OK
  
  There is no difference in the Activate Pump value and Pump Tool Monitor value.
NG → See step 6

OK: Go to next step
CHECK COOLING FAN SYSTEM
1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Air Conditioner / Active Test / Electrical Fan.
5. Perform the "Electrical Fan" Active Test.
  OK
  
  The cooling fan and No. 2 cooling fan rotates.
NG → See step 16

OK: Go to next step
INSPECT RADIATOR ASSEMBLY (FOR DRIVE UNIT)
1. Check the deformation and blockage of the radiator (for drive unit).
  OK
  
  Radiator (for drive unit) does not have deformation or blockage.
NG → See step 12

OK → See step 14
CHECK COOLANT LOOP PIPING (FOR DRIVE UNIT)
1. Check the coolant loop piping (for drive unit) condition. Refer to SYSTEM DIAGRAM [09/2013 - ] .
  OK
  
  Coolant loop piping (for drive unit) is connected correctly and is not damaged.
NG → REPAIR OR REPLACE PIPE (COOLANT LOOP FOR DRIVE UNIT)

OK → See step 15

CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR (FOR DRIVE UNIT) - THERMAL CONTROL ECU)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect connector D11 from the water pump with motor (for drive unit).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect connector L30 from the thermal control ECU.

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

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
D11-4 (PTREQ) - L30-15 (PTREQ)	Power switch off	Below 1 Ω
D11-2 (PTFDB) - L30-5 (PTFDB)	Power switch off	Below 1 Ω
D11-3 (GND) - Body ground	Power switch off	Below 1 Ω
D11-4 (PTREQ) or L30-15 (PTREQ) - Body ground and other terminals	Power switch off	1 kΩ or higher
D11-2 (PTFDB) or L30-5 (PTFDB) - Body ground and other terminals	Power switch off	1 kΩ or higher

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to Water Pump with Motor (for Drive Unit))
*b	Front view of wire harness connector (to Thermal Control ECU)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK WATER PUMP WITH MOTOR (FOR DRIVE UNIT (POWER SOURCE))

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect connector D11 from the water pump with motor (for drive unit).
Turn the power switch on (IG).

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

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
D11-1 (IGCT) - Body ground	Power switch on (IG)	11 to 14 V

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to Water Pump with Motor (for Drive Unit))

NG → See step 9

OK: Go to next step

REPLACE WATER PUMP WITH MOTOR (FOR DRIVE UNIT)
1. Replace the water pump with motor (for drive unit). Refer to REMOVAL [09/2013 - ] .
2. Connect the RAV4 EV diagnostic tool to the No. 2 DLC3.
3. Turn the power switch on (READY).
4. Turn the RAV4 EV diagnostic tool on.
5. Enter the following menus: Pump Tool / Activate Pump and Valve Control / Powertrain Pump %.
6. Perform the "Powertrain Pump %" Active Test.
7. Enter the following menus: Pump Tool Monitor / Powertrain Pump.
8. Check the "Powertrain Pump" value when performing Activate Pump.
  OK
  
  There is no difference in the Activate Pump value and Pump Tool Monitor value.
NG → See step 13

OK → COMPLETED

CHECK P/T W/P FUSE

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the P/T W/P fuse from the No. 1 motor compartment room relay block and junction block assembly.

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

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
P/T W/P fuse terminals	Always	Below 1 Ω

TEXT IN ILLUSTRATION

*1	No. 1 Motor Compartment Room Relay Block and Junction Block Assembly
*2	P/T W/P Fuse

NG → CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE

OK: Go to next step

CHECK W/P-IGCT FUSE

Remove the W/P-IGCT fuse from the No. 1 motor compartment room relay block and junction block assembly.

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

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
W/P-IGCT fuse terminals	Always	Below 1 Ω

TEXT IN ILLUSTRATION

*1	No. 1 Motor Compartment Room Relay Block and Junction Block Assembly
*2	W/P-IGCT Fuse

NG → CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE

OK: Go to next step

INSPECT IGCT 1 RELAY
1. Inspect the IGCT 1 relay. Refer to ON-VEHICLE INSPECTION [09/2013 - ] - Step 1 .
NG → REPLACE IGCT 1 RELAY

OK → REPLACE HARNESS OR CONNECTOR (IGCT 1 RELAY - WATER PUMP WITH MOTOR (FOR DRIVE UNIT), AUXILIARY BATTERY)
REPAIR OR REPLACE RADIATOR ASSEMBLY (FOR DRIVE UNIT). Refer to REMOVAL [09/2013 - ]
REPLACE THERMAL CONTROL ECU. Refer to REMOVAL [09/2013 - ]
REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to REMOVAL [09/2013 - ]
REPLENISH COOLANT (COOLANT LOOP FOR DRIVE UNIT). Refer to REPLACEMENT [09/2013 - ] - Step 3
REPAIR OR REPLACE COOLING FAN CIRCUIT. Refer to Cooling Fan Circuit [09/2013 - ]