- Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.*1
- Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.*2
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028T5A |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT: REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] | ||
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during air conditioning unit removal/installation are shown below.
CAUTION:
Be sure to read Precaution thoroughly before servicing.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
NOTICE:
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
HINT:
When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
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for HV Model:
Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Front Camera System
Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.
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for Gasoline Model:
Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
*1: for GR Model *2: except GR Model
Front Camera System
Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
*1: for Hatchback Power Door Lock Control System
- Back door opener*1
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
PROCEDURE
1. PRECAUTION
NOTICE:
Make sure to select face mode before disconnecting the cable from the negative (-) battery terminal.
2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (for HFC-134a(R134a))
Click here
3. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (for HFO-1234yf(R1234yf))
Click here
4. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
Click here
5. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL
except G16E-GTS:
Click here
for G16E-GTS:
Click here
6. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
except G16E-GTS:
Click here
for G16E-GTS:
Click here
7. DISCONNECT OUTLET HEATER WATER HOSE
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(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose. NOTICE:
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8. DISCONNECT INLET HEATER WATER HOSE
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(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose. NOTICE:
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9. DISCONNECT SUCTION PIPE SUB-ASSEMBLY (except G16E-GTS)
(a) w/o Sub-cool Accelerator:
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(1) Remove the bolt and rotate the hook connector as shown in the illustration. |
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(2) Disconnect the suction pipe sub-assembly. |
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(3) Remove the O-ring from the suction pipe sub-assembly.
NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
(b) w/ Sub-cool Accelerator:
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(1) Remove the bolt and rotate the hook connector as shown in the illustration. |
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(2) Disconnect the suction pipe sub-assembly. |
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(3) Remove the 2 O-rings from the suction pipe sub-assembly.
NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
10. DISCONNECT COOLER REFRIGERANT LIQUID PIPE A (except G16E-GTS)
(a) w/o Sub-cool Accelerator:
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(1) Disconnect the cooler refrigerant liquid pipe A. |
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(2) Remove the O-ring from the cooler refrigerant liquid pipe A.
NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
11. DISCONNECT NO. 2 AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (for G16E-GTS)
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(a) Remove the bolt and rotate the hook connector as shown in the illustration. |
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(b) Disconnect the No. 2 air conditioning tube and accessory assembly. |
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(c) Remove the 2 O-rings from the No. 2 air conditioning tube and accessory assembly.
NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.
12. REMOVE FRONT SEAT ASSEMBLY LH
for Manual Seat:
Click here
for Power Seat:
Click here
13. REMOVE FRONT SEAT ASSEMBLY RH
HINT:
Use the same procedure as for the LH side.
14. REMOVE STEERING COLUMN ASSEMBLY
Click here
15. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY
Click here
16. REMOVE ECU INTEGRATION BOX RH
for TMMMS Made:
Click here
for TMC Made:
Click here
17. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR (for Automatic Air Conditioning System)
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(a) Disconnect the connector and aspirator to remove the cooler (room temp. sensor) thermistor. |
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18. REMOVE FUEL LID LOCK OPEN LEVER SUB-ASSEMBLY (for Hatchback)
Click here
19. REMOVE FUEL LID LOCK OPEN LEVER SUB-ASSEMBLY (for Sedan)
Click here
20. REMOVE FRONT FLOOR CAUTION PLATE COVER
(a) Lift the front floor caution plate cover as shown by the arrow (1) to disengage the claw, and then pull the front floor caution plate cover as shown by the arrow (2) in the illustration to disengage the guide and remove it.
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Place Hand Here |
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Remove in this Direction (1) |
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Remove in this Direction (2) |
21. DISCONNECT FRONT FLOOR CARPET ASSEMBLY
(a) for LH Side:
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(1) Remove the front floor carpet clip. |
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(2) Remove the 2 front floor carpet clips. |
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(3) Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration. |
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(b) for RH Side:
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(1) Remove the front floor carpet clip. |
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(2) w/ clip.
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(3) Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration. |
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22. REMOVE REAR NO. 4 AIR DUCT (w/ Rear Air Duct)
(a) Disengage the 2 claws and remove the rear No. 4 air duct as shown in the illustration.
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Remove in this Direction |
23. REMOVE REAR NO. 3 AIR DUCT (w/ Rear Air Duct)
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Remove in this Direction |
(a) Disengage the 2 claws and remove the rear No. 3 air duct as shown in the illustration.
24. REMOVE REAR NO. 6 AIR DUCT (w/ Rear Air Duct)
(a) Disengage the 2 claws and remove the rear No. 6 air duct as shown in the illustration.
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Remove in this Direction |
25. REMOVE REAR NO. 5 AIR DUCT (w/ Rear Air Duct)
(a) Disengage the 2 claws and remove the rear No. 5 air duct as shown in the illustration.
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Remove in this Direction |
26. REMOVE REAR NO. 2 AIR DUCT (w/ Rear Air Duct)
(a) Disengage the 4 claws and remove the rear No. 2 air duct as shown in the illustration.
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Remove in this Direction |
27. REMOVE NO. 3 DASH PANEL INSULATOR PAD
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(a) Cut each claw of the 2 clips and remove the No. 3 dash panel insulator pad. NOTICE: If the No. 3 dash panel insulator pad is damaged, replace it with a new one. |
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(b) Remove the 2 clips.
28. REMOVE CENTER HEATER TO REGISTER DUCT SUB-ASSEMBLY
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(a) Disengage the clamp. |
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(b) Remove the 2 clips and center heater to register duct sub-assembly.
29. REMOVE LOWER DEFROSTER NOZZLE ASSEMBLY
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(a) Disengage the 6 claws and guide to remove the lower defroster nozzle assembly. |
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30. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY
(a) Remove the bolt, nut and No. 3 instrument panel to cowl brace sub-assembly.
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Bolt |
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Nut |
31. REMOVE POWER DISTRIBUTION BOX ASSEMBLY WITH MAIN BODY ECU
Click here
32. DISCONNECT INSTRUMENT PANEL WIRE
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(a) Remove the 2 nuts and disconnect the relay block holder. |
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(b) Remove the bolt and disconnect the instrument panel wire. |
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(c) Disconnect each connector.
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*A |
w/ PTC Heater |
- |
- |
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*a |
Earth Wire |
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Connector |
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Bolt |
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Screw |
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(d) w/ PTC Heater:
(1) Remove the bolt and disconnect the earth wire.
(e) Remove the 3 bolts and disconnect the 3 earth wires.
(f) Remove the screw and disconnect the instrument panel wire.
(g) Disengage each clamp.
(h) Push down the part (A) in the direction indicated by the arrow (1), to release the lock, and then move the lock lever in the direction indicated by the arrow (2) shown in the illustration to disconnect the connector.
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Release (1) |
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Move in this Direction (2) |
NOTICE:
When disconnecting any airbag connector, take care not to damage the airbag wire harness.
(i) Disengage each clamp to separate the instrument panel wire.
33. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY
(a) Turn back the front floor mat as shown in the illustration.
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Move in this Direction |
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(b) Remove the bolt and disconnect the earth wire. |
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(c) Disengage each clamp.
(d) Remove the bolt, screw, nut and No. 1 instrument panel brace sub-assembly.
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Bolt |
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Screw |
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Nut |
34. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY
(a) Turn back the front floor mat as shown in the illustration.
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Move in this Direction |
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(b) Disengage each clamp. |
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(c) Remove the bolt, screw, nut and No. 2 instrument panel brace sub-assembly.
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Bolt |
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Screw |
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Nut |
35. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY WITH AIR CONDITIONER UNIT ASSEMBLY
NOTICE:
- Be sure to support the air conditioner unit assembly when removing it. Failure to do so may cause the bracket of the air conditioner unit assembly to break.
- When disassembling the air conditioner unit assembly, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.
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(a) Turn back the front floor mat as shown in the illustration. |
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(b) Disconnect the drain cooler hose. NOTICE: If the drain cooler hose is disconnected from the cooler unit drain hose grommet, make sure to replace the cooler unit drain hose grommet with a new one. Failure to do so may lead to water ingress. |
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(c) Remove the cooler unit drain hose grommet. |
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(d) Remove the 2 bolts. |
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(e) Remove the 4 bolts (A).
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*A |
for Manual Transaxle |
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Bolt (A) |
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Bolt (B) |
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Bolt (C) |
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Nut |
(f) Remove the bolt (B).
(g) for Manual Transaxle:
(1) Remove the bolt (C).
(h) Remove the nut.
(i) Disengage each clamp.
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Remove in this Direction |
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(j) Disconnect each connector.
(k) Remove the instrument panel reinforcement assembly with air conditioner unit assembly as shown in the illustration.
(l) Disengage the claw and 2 guides to disconnect the ID code box (immobiliser code ECU) as shown in the illustration.
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Remove in this Direction |
36. REMOVE AIR CONDITIONER UNIT ASSEMBLY
(a) Remove the 3 bolts.
(b) Disengage the 2 claws and remove the air conditioner unit assembly from the instrument panel reinforcement assembly.
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