DTC P1200:00 [MZR-CD 2.2]

id0102f3148900

DTC P1200:00

Fuel injector range/performance problem

DETECTION CONDITION

•  The injection amount correction procedure does not start.

Diagnostic support note

•  The MIL does not illuminate.

•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.

•  The DTC is not stored in the PCM memory.

POSSIBLE CAUSE

•  Loose connection temporary between DLC-2 and M-MDS while injection amount correction

•  Fuel injector malfunction

•  Insufficient engine compression

•  Injection amount correction procedure has not been completed.

•  PCM malfunction

DTC P1200:00	Fuel injector range/performance problem
DETECTION CONDITION	• The injection amount correction procedure does not start. Diagnostic support note • The MIL does not illuminate. • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available. • The DTC is not stored in the PCM memory.
POSSIBLE CAUSE	• Loose connection temporary between DLC-2 and M-MDS while injection amount correction • Fuel injector malfunction • Insufficient engine compression • Injection amount correction procedure has not been completed. • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
1		No	Go to the next step.
2	INSPECT DLC-2 CONDITION • Switch the ignition to off. • Inspect for poor connection between DLC-2 and M-MDS (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 6.
2		No	Go to the next step.
3	INSPECT FUEL INJECTOR • Inspect the fuel injectors for all cylinders. (See FUEL INJECTOR INSPECTION [MZR-CD 2.2].) • Is there any malfunction?	Yes	Replace the malfunctioning fuel injector, then go to Step 6. (See FUEL INJECTOR REMOVAL/INSTALLATION [MZR-CD 2.2].)
3		No	Go to the next step.
4	INSPECT ENGINE COMPRESSION • Inspect the engine compression. (See COMPRESSION INSPECTION [MZR-CD 2.2].) • Is there any malfunction?	Yes	Overhaul the engine for repairs, then go to Step 6.
4		No	Go to the next step.
5	PERFORM INJECTION AMOUNT CORRECTION PROCEDURE • Perform the injection amount correction procedure again. (See FUEL INJECTOR INJECTION AMOUNT CORRECTION [MZR-CD 2.2].) • Start the engine. • Verify that the glow indicator light condition. • Do the glow indicator light turn off?	Yes	Go to the next step.
5		No	Perform the fuel injector adjustment procedure (fuel injector data reset and fuel injector code program etc.) again, then go to the next step. (See FUEL INJECTOR DATA RESET [MZR-CD 2.2].) (See FUEL INJECTOR CODE PROGRAM [MZR-CD 2.2].)
6	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].) • Perform the injection amount correction procedure. (See FUEL INJECTOR INJECTION AMOUNT CORRECTION [MZR-CD 2.2].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
6		No	Go to the next step.
7	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR-CD 2.2].)
7		No	DTC troubleshooting completed.