Code No. P1626: Injection Quantity Compensation Value Not Coding
FUNCTION
The engine-ECU checks whether injector correction data is written to the engine-ECU.
TROUBLE JUDGEMENT
Check Condition
Ignition switch is in "ON" position.
Judgement Criterion
No record of writing injector correction data
FAIL-SAFE AND BACKUP FUNCTION
The rail pressure is controlled in the range between 50 and 100 MPa.
The fuel injection amount is restricted (output restriction).
The open angle of the accelerator pedal is restricted.
The EGR control is stopped (fully closed).
The DPF regeneration is prohibited.
The throttle valve is opened (electrical discontinuity).
PROBABLE CAUSE
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. Write the injector identification code data.
Write the injector identification code data. (Refer to GROUP 00 - Precautions Before Service - Injector Identification Code Registration Procedure <4N1> ).
After writing the injector identification code data, recheck for abnormal symptoms.