Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028LSA
Model Year Start: 2023 Model: Corolla Hatchback Prod Date Range: [11/2022 - 03/2023]
Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P136201; "B" Camshaft Position Actuator Bank 1 General Electrical Failure; 2023 MY Corolla Corolla Hatchback [11/2022 - 03/2023]

DTC

P136201

"B" Camshaft Position Actuator Bank 1 General Electrical Failure

DESCRIPTION

Refer to DTC P001001.

Click here 2020 - 2025 MY Corolla Corolla Hatchback [03/2019 -        ]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001001; Camshaft Position "A" Actuator Bank 1 General Electrical Failure+

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P136201

"B" Camshaft Position Actuator Bank 1 General Electrical Failure

While engine is running, malfunction in rotation direction signal (VTD) of cam timing control motor with EDU assembly is detected for 3 seconds (1 trip detection logic).
  • Cam timing control motor with EDU assembly
  • Open or short in cam timing control motor with EDU assembly circuit
  • VVT relay
  • ECM

Comes on

DTC stored
  • SAE Code: P1362
  • DTC for Mexico Models: Applies

Symptoms and Fail-safe Operation During Cam Timing Control Motor Malfunction

Vehicle Condition

Fail-Safe
  • Engine difficult to start
  • Lack of power

The cam timing control motor with EDU assembly is operated to the most retarded position.

MONITOR DESCRIPTION

This DTC is output when a rotation direction signal malfunction is detected in the cam timing control motor with EDU assembly. While the engine is running, if a rotation direction signal (VTD) malfunction is detected, a DTC is output (1 trip detection logic).

MONITOR STRATEGY

Related DTCs

P1362: Camshaft position signal range check

Required sensors/Components (Main)

Cam timing control motor with EDU assembly

Required sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

3 seconds

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Battery voltage

11 V or higher

Ignition switch

ON

VVT motor speed at VVT revolution sensor

100 rpm or higher

Engine speed

100 rpm or higher

TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions is met

A or B

A. Both of the following conditions are met

(a) and (b)

(a) Current VVT position sensor terminal voltage level

High

(b) Last VVT position sensor terminal voltage level

High

B. Both of the following conditions are met

(c) and (d)

(c) Current VVT position sensor terminal voltage level

Low

(d) Last VVT position sensor terminal voltage level

Low

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Turn the ignition switch to ON [A].
  7. Turn the Techstream on.
  8. Start the engine and idle it for 30 seconds or more [B].
  9. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  10. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  12. Input the DTC: P136201.
  13. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL
    • DTC judgment completed
    • System normal

    ABNORMAL
    • DTC judgment completed
    • System abnormal

    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • If the judgment result is INCOMPLETE, perform steps [D] through [E].
    • [A] to [C]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
  14. Drive the vehicle for 5 minutes or more [D].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  15. Enter the following menus: Powertrain / Engine / Trouble Codes [E].
  16. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  17. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  18. Input the DTC: P136201.
  19. Check the DTC judgment result.

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • [A] to [E]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P136001.

Click here 2023 MY Corolla Corolla Hatchback [11/2022 - 03/2023]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P136001; "A" Camshaft Position Actuator Bank 1 General Electrical Failure

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:

Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY)

(a) Disconnect the cam timing control motor with EDU assembly connector.

*a

Front view of wire harness connector

(to Cam Timing Control Motor with EDU Assembly)

(b) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

C14-2 (VB1) - Body ground

Ignition switch ON

11 to 14 V
NG

GO TO STEP 8

OK

2.

CHECK HARNESS AND CONNECTOR (CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY - BODY GROUND)

(a) Disconnect the cam timing control motor with EDU assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C14-3 (GND) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

INSPECT CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY (BODY GROUND)

(a) Check installation condition.

  1. Check that the 3 installation bolts of the cam timing control motor with EDU assembly are tightened to the specified torque.

Torque:

21 N*m (214 kgf*cm, 15 ft.*lbf)

NG

TIGHTEN TO SPECIFIED TORQUE
OK

4.

CHECK HARNESS AND CONNECTOR (CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY - ECM)

(a) Disconnect the cam timing control motor with EDU assembly connector.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C14-5 (VTD) - C76-71 (EMF1)

Always

Below 1 Ω

C14-5 (VTD) or C76-71 (EMF1) - Body ground and other terminals

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

REPLACE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY

(a) Replace the cam timing control motor with EDU assembly.

Click here 2023 MY Corolla Corolla Hatchback [11/2022 - 03/2023]; M20A-FKS (ENGINE CONTROL): CAMSHAFT TIMING CONTROL MOTOR: REMOVAL

HINT:

Perform "Inspection After Repair" after replacing the cam timing control motor with EDU assembly.

Click here 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

NEXT

6.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the ignition switch off and wait for at least 30 seconds.

NEXT

7.

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Trouble Codes.

(c) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P136201 is output

B
A

END
B

REPLACE ECM

8.

INSPECT VVT RELAY

(a) Inspect the VVT relay.

Click here 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; M20A-FKS (ENGINE CONTROL): RELAY: ON-VEHICLE INSPECTION+

NG

REPLACE VVT RELAY
OK

9.

CHECK HARNESS AND CONNECTOR (VVT RELAY - CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY)

(a) Remove the VVT relay from No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly.

(b) Disconnect the cam timing control motor with EDU assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (VVT relay) - C14-2 (VB1)

Always

Below 1 Ω

3 (VVT relay) or C14-2 (VB1) - Body ground and other terminals

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

10.

CHECK HARNESS AND CONNECTOR (POWER SOURCE OF VVT RELAY)

*1

No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly

*2

VVT Relay

(a) Remove the VVT relay from No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

5 (VVT relay) - Body ground

Always

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - VVT RELAY)
OK

11.

CHECK HARNESS AND CONNECTOR (POWER SOURCE OF VVT RELAY)

*1

No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly

*2

VVT Relay

(a) Remove the VVT relay from No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly.

(b) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

1 (VVT relay) - Body ground

Ignition switch ON

11 to 14 V
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT RELAY - BODY GROUND)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - VVT RELAY)