DTC P0012-00: Camshaft Position "A" - Timing Over-Retarded Bank 1 [11/2023 - ]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0012-00 is output	A
   DTC P0012-00 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0012-00 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART  . Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2023 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result: 

A 

See step  2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the cam timing control motor with EDU assembly.

   Refer to REMOVAL [11/2023 - ]

2. Check if the eccentric shaft of the camshaft timing gear assembly rotates smoothly.
   NOTE:

   If the camshaft is at a position where a valve is about to open, the eccentric shaft may become difficult to rotate.

   OK

   Rotates smoothly.

   HINT: 

   Perform "Inspection After Repair" after replacing the camshaft timing gear assembly, or removing the cam timing control motor with EDU assembly.

   Refer to INITIALIZATION [10/2021 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 

Refer to PROCEDURE - Step 33

Result: 

OK 

See step  3

Refer to REMOVAL [11/2023 - ]

HINT: 

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

Refer to INITIALIZATION [10/2021 - ]

Result

Result: 

NEXT 

See step  4

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P0012-00 is output	B

Result: 

A 

END 

Result: 

B 

REPLACE ECM 

Refer to REMOVAL [11/2023 - ]