INSPECTION PROCEDURE
PROCEDURE
1. CHECK ENGINE CONTROL SYSTEM
(a) Check if any engine control system DTC is output See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/DTC Check / Clear for 2GR-FE).
Result:
B -- INSPECT ENGINE CONTROL SYSTEM (for 2GR-FE) See: Diagnostic Trouble Code Descriptions/SFI System
A -- REPLACE ECM (for 2GR-FE) See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service
and Repair/Removal
Up to 08/2009
BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1203,C1270: ECM
Communication Circuit Malfunction
DESCRIPTION
The circuit is used to send TR(A)C and VSC control information from the skid control ECU to the ECM, and engine control information from the
ECM to the skid control ECU.
If the skid control ECU is replaced or if the memory is cleared, system information such as the destination or vehicle type will be unconfirmed. After
switching to Test Mode, the skid control ECU performs initialization when starting communication with the vehicle, and stores the system
information in 2 or 3 seconds.
DTC C1270 will be cleared when the initialization is completed normally or when Test Mode ends. DTC C1270 is output only in Test Mode.
INSPECTION PROCEDURE
NOTICE:
When replacing the brake actuator assembly, perform zero point calibration and store system information See: Brakes and
Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Programming and Relearning.
PROCEDURE
1. CHECK PART NUMBER (ECM)
(a) Check that the part number of the installed ECM is correct.
OK:
ECM installed in the vehicle has the correct part number.
NG -- REPLACE ECM (for 2GR-FSE) See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Service and Repair/Removal
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