Dtc P1603 Engine Stall History

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL

DESCRIPTION

INSPECTION PROCEDURE

READ OUTPUT DTC (RECORD STORED DTC AND FREEZE FRAME DATA (PROCEDURE 1))

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1603)

TAKE SNAPSHOT DURING IDLING (PROCEDURE 3)

DETERMINE CAUSE OF PROBLEM (CHECK FREEZE FRAME DATA AND SNAPSHOT)

DTC P1603 Engine Stall History

DESCRIPTION

After starting the engine, this DTC is stored when the engine stops without the engine switch being operated.


Using the GTS, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.


It is necessary to check if the vehicle has ran out of fuel before performing troubleshooting, as this DTC is also stored when the engine stalls due to running out of fuel.

P1603
DTC Detection Drive PatternDTC Detection ConditionTrouble Area
-2 seconds or more elapse after starting the engine, and with the engine running, the engine stops for 0.5 seconds or more without the engine switch being operated
(for Manual Transmission: Fuel pressure drops to 10000 kPa or less and fuel injection is stopped)
(1 trip detection logic)
Injector assembly
Injector compensation code
Fuel leak
Suction control valve (fuel supply pump assembly)
Low quality fuel
Fuel filter element sub-assembly air bleed problem
Fuel filter element sub-assembly clog
Related Data List
DTC No.Data List
P1603
Engine Speed
Battery Voltage
Engine Speed of Cyl #1 (to #8)
Target Common Rail Pressure
Common Rail Pressure
Target Pump SCV Current
Injection Feedback Val #1 (to #8)
Injection Volume

INSPECTION PROCEDURE

Fuel system

The following malfunctions may be present in the fuel system.

Problem with injector assemblies.

Problem with fuel supply pump assembly.

Air in fuel pipe.

Fuel filter element sub-assembly clog.

Engine assembly

The following malfunctions may be present in the engine assembly.

Insufficient compression.

  • HINT:
In contrast to normal malfunction diagnosis for components, circuits and systems, DTC P1603 is used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as engine stall.
As the DTC can be stored as a result of certain user actions, even if the DTC is output, if the customer makes no mention of problems, clear the DTC without performing any troubleshooting and return the vehicle to the customer.
For vehicles with an automatic transmission, the engine may stall if the user shifts too quickly causing the engine to not be able to keep up with the load placed on it. Therefore, if the customer mentions this problem, be sure to ask the customer about the way they operate the vehicle and offer advice regarding vehicle operation.
If any other DTCs are output, perform troubleshooting for those DTCs first.
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data.
Dtc P1603 Engine Stall History. 1VD-FTV ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200
The fourth set of freeze frame data is the data recorded when the DTC is stored.
1.READ OUTPUT DTC (RECORD STORED DTC AND FREEZE FRAME DATA (PROCEDURE 1))

Connect the GTS to the DLC3.

Turn the engine switch on (IG) and turn the GTS on.

Enter the following menus: Engine and ECT / Trouble Codes.

Record the stored DTC and freeze frame data.

  • HINT:
  • This freeze frame data shows the actual engine conditions when engine stall trouble occurred.
NEXT
2.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1603)

Connect the GTS to the DLC3.

Turn the engine switch on (IG) and turn the GTS on.

Enter the following menus: Engine and ECT / Trouble Codes.

Read the DTCs.

Result
ResultProceed to
P1603 is outputA
P1603 and other DTCs are outputB
  • HINT:
  • If any DTCs other than DTC P1603 are output, troubleshoot those DTCs first.
B
GO TO DTC CHART ()
A
3.TAKE SNAPSHOT DURING IDLING (PROCEDURE 3)

Connect the GTS to the DLC3.

Start the engine and turn the GTS on.

Warm up the engine (engine coolant temperature is 70°C (158°F) or higher).

Enter the following menus: Engine and ECT / Data List / All Data.

Take a snapshot when idling with no load after the engine is warmed up and when the problem is occurring.

  • HINT:
A snapshot can be used to compare vehicle data from the time of the malfunction to normal data and is very useful for troubleshooting.
The shift lever should be in neutral and the A/C switch and all accessory switches should be off.
If rough idling occurs when the A/C switch is on, take another snapshot with the A/C switch on.
Take a snapshot when the problem is occurring, such as when the engine is cold. However, if the problem does not reoccur, it is acceptable to only take a snapshot after the engine is warmed up.
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4.DETERMINE CAUSE OF PROBLEM (CHECK FREEZE FRAME DATA AND SNAPSHOT)

Determine the cause of the problem based on the freeze frame data recorded in procedure 1 and the Data List values recorded when idling the engine in procedure 3.

Battery Voltage
Judgment of Data List ValuesProblem CauseNormal ConditionDiagnosis Note
"Battery Voltage" in freeze frame data is below 6 VEngine starting trouble may have occurred because battery is fully depletedDuring cranking: 6 V or higherThe battery may be fully depleted or the battery terminals may be loose.
Common Rail Pressure
Judgment of Data List ValuesProblem CauseNormal ConditionDiagnosis Note
"Common Rail Pressure" in freeze frame data is below 25000 kPa (254.9 kgf/cm2, 3626 psi)Problem supplying fuel to fuel supply pump assembly (low pressure side)
Ran out of fuel, air in fuel, fuel frozen (in this case, values of "Fuel Temperature" and "Coolant Temp" in freeze frame data are low)
Fuel filter element sub-assembly clog, fuel line clog (low pressure side) or fuel leak
Feed pump (in fuel supply pump assembly) malfunctioning
Problem supplying fuel to fuel supply pump assembly (low pressure side) or problem on high pressure side
Fuel supply pump assembly (suction control valve operation malfunction)
Common rail assembly (for bank 1) (fuel pressure sensor)
When in a stable condition such as when the engine is idling after being warmed up, the common rail pressure is within +/-5000 kPa of the target fuel pressure
  • HINT:
  • In order to maintain the injection amount before an engine stall, the target common rail pressure is increased drastically. At this time, Common Rail Pressure may not follow correctly, but this is normal behavior and not a malfunction.
If "Common Rail Pressure" is 10000 kPa (102.0 kgf/cm2, 1451 psi) or less, fuel injection control is stopped.
  • HINT:
  • Refer to Engine Difficult to Start or Stalling for the inspection procedure ().
Injection Feedback Val #1(to #8)
Judgment of Data List ValuesProblem CauseNormal ConditionDiagnosis Note
"Injection Feedback Val #1 (to #8)" in freeze frame data is not +3.0 mm3/st or lessInjector assembly malfunction or compression problemLess than +3.0 mm3/stIf an injector assembly is malfunctioning, even though the engine starts, idling is rough.
  • HINT:
  • Refer to Engine Difficult to Start or Stalling for the inspection procedure ().
"Injection Feedback Val #1 (to #8)" in Data List is not +3.0 mm3/st or less when idling
Injection Volume
Judgment of Data List ValuesProblem CauseNormal ConditionDiagnosis Note
"Injection Volume" in Data List is more than 13 mm3/st and "Injection Feedback Val #1 (to #4)" is within range of +/-3.0 mm3/st when idling after warming up engineInjector assemblies of all cylinders malfunctioning-
  • HINT:
  • Refer to Engine Difficult to Start or Stalling for the inspection procedure ().
Immobiliser Fuel Cut History
Judgment of Data List ValuesProblem CauseNormal ConditionDiagnosis Note
"Immobiliser Fuel Cut History" in freeze frame data is OFF to ONFuel injection has stopped due to engine immobiliser system.
  • HINT:
  • "Main Injection Period" in freeze frame data is 0 μs
OFF
Inspect engine immobiliser system.
Inspection looseness in battery terminal.
Inspect connection condition of ECM power supply system wiring.
  • HINT:
  • Perform the next inspection if there are no problems with the above items.
NEXT
GO TO FUEL INJECTION SYSTEM ()