Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1605)
DTC P1605 Rough Idling
DESCRIPTION
If the idle speed drops or becomes unstable when the engine is running at idle with a low load, this DTC is stored. This DTC is also stored if the vehicle runs out of fuel. Be sure to check whether there is enough fuel in the fuel tank before inspection.
DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
- | The engine speed drops to less than 400 rpm (1 trip detection logic). | Injector assembly Injector compensation code Fuel leak Glow system Intake air system leakage Intake air system blockage EGR system Throttle valve system Suction control valve (fuel supply pump assembly) Low quality fuel Fuel filter element sub-assembly air bleed problem Accessory problem (A/C, generator, etc.) Engine assembly ECM |
DTC No. | Data List |
P1605 | Engine Speed MAP MAF Coolant Temp Battery Voltage Engine Speed of Cyl #1 (to #8) Intake Air Target Common Rail Pressure Fuel Press Target Pump SCV Current Injection Feedback Val #1 (to #8) Injection Volume Actual Throttle Position Target EGR Valve Pos. Actual EGR Valve Pos. EGR Close Lrn. Status After Glow |
INSPECTION PROCEDURE
In order for idling to be stable, glow system operation, fuel system operation and compression sufficient to maintain the target idling speed are necessary. |
Glow system |
The following malfunctions may be present in the glow system.
Engine coolant temperature sensor malfunction.
Glow plug malfunction.
Glow relay malfunction.
Fuel system |
The following malfunctions may be present in the fuel system.
Fuel leakage.
Problem with injector assemblies.
Problem with fuel supply pump assembly.
Air in fuel pipe.
Engine assembly |
The following malfunctions may be present in the engine assembly.
Insufficient compression.
- HINT:
As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
1.CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1605) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
Result | Proceed to |
P1605 is output | A |
P1605 and other DTCs are output | B |
- HINT:
- If any DTCs other than P1605 are output, troubleshoot those DTCs first.
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A | ||
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