DESCRIPTION After starting the engine, this DTC is stored when the engine stops without the engine switch being operated.
Using
the Techstream, 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 run out of fuel before performing
troubleshooting, as this DTC is also stored when the engine stalls due
to running out of fuel. |
DTC No. | Detection Item |
DTC Detection Condition | MIL |
Memory | Note | |
P160300 | Engine Stall History |
After
monitoring for startability problems (P160400) finishes and 2 seconds
or more have elapsed after starting the engine, with the engine running,
the engine stops (the engine speed drops to 200 rpm or less) without
the engine switch being operated for 0.5 seconds or more (1 trip
detection logic). | Does not come on |
DTC stored | SAE Code: P1603 | |
Trouble Area | | Ignition system |
- Spark plug
- Ignition coil assembly
| | Fuel system |
- Fuel injector assembly (for port injection)
- Fuel injector assembly (for direct injection)
- Fuel pump (for low pressure side)
- Fuel pump assembly (for high pressure side)
- Fuel pump control circuit
- Fuel line
- Purge VSV system
- Fuel quality (existence of foreign matter, degradation)
| | Intake and exhaust systems |
| | Other control systems |
- ECM
- Wire harness or connector
- Knock control sensor
- Engine coolant temperature sensor
| | Engine |
- Water inlet with thermostat sub-assembly
- Engine assembly
| | High load from another system |
- Air conditioning system
- Power steering system
- Electrical load signal system
- A/T system
| CAUTION / NOTICE / HINT
HINT:
- DTC P160300
- In contrast to normal malfunction diagnosis for components, circuits and
systems, DTC P160300 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 this 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.
- As DTCs may be stored when an Active Test or learning is performed, make
sure to clear the DTCs before returning the vehicle to the customer.
- DTCs related to engine stall problems may be detected due to operations
performed by the user. The following are a few examples. Ask questions
to the user about how the vehicle is operated and give advice as
necessary.
- Ran out of fuel
- Rolled down on a slope and engine stalls (backed up in D, moved forward in R)
- If any other DTCs are output, perform troubleshooting for those DTCs first.
- CUSTOMER PROBLEM ANALYSIS
Use any information from the customer problem analysis
about the condition of the vehicle at the time when the problem occurred
(how the engine stopped, conditions when the engine was restarted,
etc.) as a reference.
|
Symptom |
Suspected Area |
|
Engine vibration occurs and engine stops |
- Abnormal mass air flow meter sub-assembly output due to existence of foreign matter
- Abnormal air fuel ratio due to malfunction of air fuel ratio sensor or
heated oxygen sensor, air leaks in intake system or insufficient fuel
supply
|
|
Engine stops with no engine vibration |
Ignition system, injection stoppage, high load from external parts
|
|
Engine can be started with accelerator pedal depressed
|
Insufficient air volume |
|
Engine stalls or is difficult to start immediately after engine stalled, regardless of whether engine is cold or warm
|
Deposits in intake system or combustion chamber caught temporarily on intake or exhaust valve
|
- FREEZE FRAME DATA
- Read freeze frame data using the Techstream. Freeze frame data records
engine conditions when a malfunction occurs. This information can be
useful when troubleshooting.
- When confirming the freeze frame data, be sure to check all multi freeze frame data.
Click here 
- When confirming the freeze frame data, if there are multiple items
related to the cause of the malfunction, perform troubleshooting for all
related items.
- Try to operate the vehicle under the conditions recorded in the freeze
frame data which were present when the malfunction occurred. Confirm the
data at this time and the data when the engine is idling (engine warmed
up, no load, and shift lever in D or N) and compare this data with the
freeze frame data.
- PRECAUTIONS
- Inspections take into account the fact that the malfunction may not have
recurred and place emphasis on checking the vehicle conditions present
at the time when the malfunction occurred.
- When performing inspections, jiggle the relevant wire harnesses and
connectors in an attempt to reproduce malfunctions that do not always
occur.
PROCEDURE |
1. | CHECK FOR ANY OTHER DTCS OUTPUT |
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG).
(c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs. Powertrain > Engine > Trouble Codes
|
Result | Proceed to | |
Only DTC P160300 is output |
A | | DTCs other than P160300 are output |
B |
HINT:
- When DTC P160300 and P160500 are output simultaneously, perform the troubleshooting for P160500 first.
- Using freeze frame data, confirm the conditions the moment the DTC was
stored and after the DTC was stored. This information can be useful when
troubleshooting.
| B |
 | GO TO DTC CHART |
|
A |
 | |
| 2. |
READ FREEZE FRAME DATA (ISC F/B LEARN TORQUE) |
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG).
(c) Turn the Techstream on. (d)
Using the Techstream, confirm the vehicle conditions recorded in the
freeze frame data which were present when the DTC was stored. Click here
|
Freeze Frame Data Item for DTC P160300 |
Result | Suspected Area |
Action | Proceed to | |
ISC F/B Learn Torque |
Less than 30 Nm | - |
Go to the next step | A | |
30 Nm or higher | Throttle body with motor assembly |
Go to ENGINE STALLS (from step 11) |
B |
| B |
| GO TO ENGINE STALLS |
|
A | |
| |
| 3. |
READ FREEZE FRAME DATA (A/F (O2) SENSOR VOLTAGE, SHORT FT AND LONG FT) |
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG).
(c) Turn the Techstream on. (d)
Using the Techstream, confirm the vehicle conditions recorded in the
freeze frame data which were present when the DTC was stored. Click here
|
Freeze Frame Data Item for DTC P160300 |
Suspected Area |
Action | Proceed to | |
A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Voltage B2S1 |
Short FT B1S1 and Short FT B2S1 |
Long FT B1S1 and Long FT B2S1 | |
2.8 V to 3.8 V | -15% to 15% |
-15% to 15% | - |
Go to ENGINE STALLS |
NEXT | | 3.8 V or higher |
15% or higher | - |
Fuel pump | Go to ENGINE STALLS (from step 20) | |
Less than 2.8 V, or 3.8 V or higher |
Less than -15%, or 15% or higher |
Less than -15%, or 15% or higher |
- Mass air flow meter sub-assembly
- Air fuel ratio sensor
- Fuel pump
| Go to ENGINE STALLS (from step 15)* |
HINT: *:
If the value of A/F (O2) Sensor Voltage B1S1, A/F (O2) Sensor Voltage
B2S1, Short FT B1S1, Short FT B2S1, Long FT B1S1 or Long FT B2S1 is as
specified, malfunction of a component listed in the "Suspected Area"
column of the table is suspected.
| NEXT | |
GO TO ENGINE STALLS | |
