Toyota Corolla Cross: Removal

REMOVAL

CAUTION / NOTICE / HINT

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	WHEN REPLACING BATTERY ECU ASSEMBLY	-		-	-
3	SERVICE PLUG GRIP	G3834	-	-	-
4	REMOVE CONNECTOR COVER ASSEMBLY	-		-	-
5	TERMINAL VOLTAGE	-		-	-
6	INSTALL CONNECTOR COVER ASSEMBLY	-		-	-

Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping" : N*m (kgf*cm, ft.*lbf)

N*m (kgf*cm, ft.*lbf): Specified torque

Procedure		Part Name Code
7	REAR CENTER SEAT OUTER BELT ASSEMBLY	73350C	-	-	-
8	BENCH TYPE REAR SEAT CUSHION ASSEMBLY	-		-	-
9	REAR SEAT CUSHION LOCK HOOK	72693	-	-	-
10	REAR DOOR SCUFF PLATE RH	67917A	-	-	-
11	REAR UNDER SIDE COVER RH	76973F	-	-	-
12	REAR DOOR SCUFF PLATE LH	67918A	-	-	-
13	REAR UNDER SIDE COVER LH	76974F	-	-	-
14	REAR UNDER COVER	76971G	-	-	-
15	REAR SEAT CUSHION LEG SUB-ASSEMBLY	71033	-	-	-

Procedure		Part Name Code
16	NO. 1 HYBRID BATTERY SHIELD SUB-ASSEMBLY	G920Q		-	-
17	UPPER HV BATTERY COVER SUB-ASSEMBLY	-		-	-
18	BATTERY ECU ASSEMBLY	89890A		-	-

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during battery ECU assembly removal/installation are shown below.

CAUTION:

• Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.

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• To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

NOTICE:

• The type of battery ECU assembly to be used varies depending on the vehicle model.
• The type of battery ECU assembly to be used varies depending on the vehicle model.
• If the wrong type of battery ECU assembly is installed, the ignition switch cannot be turned on (READY).
• After installing the battery ECU assembly, perform the following to check that the ignition switch can be turned on (READY).
  • Turn the ignition switch to ON (READY).
  • Turn the ignition switch off and wait for 30 seconds or more.
  • Turn the ignition switch on (READY) again.

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.

• 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 (10 mph) or more for 1 second or more.

• Learning completes when vehicle is operated normally

  Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
  Power door lock control system Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
  Power back door system	Fully close the back door by hand. HINT: Initialization is not necessary if the above procedures are performed while the back door is closed.
  Air conditioning system	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

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2. WHEN REPLACING BATTERY ECU ASSEMBLY

HV battery learning values are stored in the battery ECU assembly and ECM and are used to detect malfunctions and illuminate the hybrid battery indicator light in the combination meter assembly. When either of these ECUs is replaced, the new ECU receives the HV battery learning values from the other ECU and stores them.

NOTICE: Do not replace the battery ECU assembly and ECM at the same time as the HV battery learning values will be lost. However, if it is necessary to replace both ECUs at the same time, replace them by following the procedure below. Do not replace the battery ECU assembly or ECM with a used one from another vehicle.

(1) Procedure when replacing both battery ECU assembly and ECM:

1. Disconnect the cable from the negative (-) auxiliary battery terminal.

2. Replace either ECU.

3. Connect the cable to the negative (-) auxiliary battery terminal.

4. Turn the ignition switch on (READY) and wait for 5 minutes or more.

5. Turn the ignition switch off and disconnect the cable from the negative (-) auxiliary battery terminal.

6. Replace the other ECU.

7. Connect the cable to the negative (-) auxiliary battery terminal.

8. Check that the ignition switch can be turned on (READY).

HINT:

If the battery ECU assembly and ECM are replaced at the same time without following the above procedure, replace either of the ECUs with its original one and then replace it again by following the above procedure. If the correct procedure is not followed, perform the procedure again from the beginning.

3. REMOVE SERVICE PLUG GRIP

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4. REMOVE CONNECTOR COVER ASSEMBLY

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5. CHECK TERMINAL VOLTAGE

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6. INSTALL CONNECTOR COVER ASSEMBLY

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7. DISCONNECT REAR CENTER SEAT OUTER BELT ASSEMBLY

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8. REMOVE BENCH TYPE REAR SEAT CUSHION ASSEMBLY

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9. REMOVE REAR SEAT CUSHION LOCK HOOK

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10. REMOVE REAR DOOR SCUFF PLATE RH

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11. REMOVE REAR UNDER SIDE COVER RH

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12. REMOVE REAR DOOR SCUFF PLATE LH

(a) Use the same procedure as for the RH side.

13. REMOVE REAR UNDER SIDE COVER LH

(a) Use the same procedure as for the RH side.

14. REMOVE REAR UNDER COVER

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15. REMOVE REAR SEAT CUSHION LEG SUB-ASSEMBLY

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16. REMOVE NO. 1 HYBRID BATTERY SHIELD SUB-ASSEMBLY

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17. REMOVE UPPER HV BATTERY COVER SUB-ASSEMBLY

CAUTION: Be sure to wear insulated gloves and protective goggles.

18. REMOVE BATTERY ECU ASSEMBLY

CAUTION: Be sure to wear insulated gloves and protective goggles. NOTICE: Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector. If the battery ECU assembly has been struck or dropped, replace it.

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