DESCRIPTION
HINT:
A Direct Ignition System (DIS) is used on this vehicle.
The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil and one spark plug is connected to the end of each secondary wiring. A powerful voltage, generated in the secondary wiring, is applied directly to each spark plug. The spark of the spark plugs passes from the center electrode to the ground electrodes.
The ECM determines the ignition timing and transmits the ignition (IGT) signals to each cylinder. Using the IGT signal, the ECM turns the power transistor inside the igniter on and off. The power transistor, in turn, switches on and off the current to the primary coil. When the current to the primary coil is cut off, a powerful voltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders. As the ECM cuts the current to the primary coil, the igniter sends back an ignition confirmation (IGF) signal to the ECM for each cylinder ignition.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
P0351 P0352 P0353 P0354 |
No IGF signal to the ECM while the engine is running (1 trip detection logic). |
|
Terminal No. (Symbol) |
Tool Setting |
Condition |
---|---|---|
B58-108 (IGT1) - B58-104 (E1) |
2 V/DIV, 20 ms/DIV |
Idling |
B58-107 (IGT2) - B58-104 (E1) |
2 V/DIV, 20 ms/DIV |
Idling |
B58-106 (IGT3) - B58-104 (E1) |
2 V/DIV, 20 ms/DIV |
Idling |
B58-105 (IGT4) - B58-104 (E1) |
2 V/DIV, 20 ms/DIV |
Idling |
B58-23 (IGF1) - B58-104 (E1) |
2 V/DIV, 20 ms/DIV |
Idling |
MONITOR DESCRIPTION
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in the igniter and stores a DTC.
MONITOR STRATEGY
Related DTCs |
P0351: Igniter (Cylinder 1) Circuit/Open P0352: Igniter (Cylinder 2) Circuit/Open P0353: Igniter (Cylinder 3) Circuit/Open P0354: Igniter (Cylinder 4) Circuit/Open |
Required Sensors/Components (Main) |
Igniter |
Required Sensors/Components (Related) |
Crankshaft position sensor |
Frequency of Operation |
Continuous |
Duration |
- |
MIL Operation |
Immediate |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored |
None |
All of the following conditions are met |
A, B, C and D |
A. Spark cut |
Not operating |
B. Either of the following conditions is met |
(a) or (b) |
(a) Engine speed |
1500 rpm or less |
(b) Starter |
OFF |
Either of the following conditions is met |
C or D |
C. Both of the following conditions is met |
(a) and (b) |
(a) Engine speed |
500 rpm or less |
(b) Battery voltage |
6 V or higher |
D. All of the following conditions are met |
(a), (b) and (c) |
(a) Engine speed |
More than 500 rpm |
(b) Battery voltage |
10 V or higher |
(c) Number of sparks after CPU is reset |
5 sparks or more |
TYPICAL MALFUNCTION THRESHOLDS
All of the following conditions are met |
A, B, C and D |
A. Ignition signal fail counter |
More than 2 times |
B. Time after condition A is met |
0.256 seconds or more |
C. Ignition signal fail counter after condition B is met |
More than 2 times |
D. Ignition switch |
ON |
COMPONENT OPERATING RANGE
Confirmed ignition signal input when ignition signal is on to off |
2 times |
CONFIRMATION DRIVING PATTERN
HINT:
Techstream Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
N/A |
|
HINT:
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (IG2 RELAY - IGNITION COIL, IGNITION COIL - BODY GROUND) |
(a) Disconnect the ignition coil connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-4 (GND) - Body ground |
Always |
Below 1 Ω |
B49-4 (GND) - Body ground |
Always |
Below 1 Ω |
B50-4 (GND) - Body ground |
Always |
Below 1 Ω |
B51-4 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-1 (+B) - B48-4 (GND) |
Ignition switch ON |
11 to 14 V |
B49-1 (+B) - B49-4 (GND) |
Ignition switch ON |
11 to 14 V |
B50-1 (+B) - B50-4 (GND) |
Ignition switch ON |
11 to 14 V |
B51-1 (+B) - B51-4 (GND) |
Ignition switch ON |
11 to 14 V |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - IGNITION COIL, IGNITION COIL - BODY GROUND) |
|
2. |
CHECK HARNESS AND CONNECTOR (IGNITION COIL - ECM) |
(a) Disconnect the ignition coil connectors.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-2 (IGF) - B58-23 (IGF1) |
Always |
Below 1 Ω |
B49-2 (IGF) - B58-23 (IGF1) |
Always |
Below 1 Ω |
B50-2 (IGF) - B58-23 (IGF1) |
Always |
Below 1 Ω |
B51-2 (IGF) - B58-23 (IGF1) |
Always |
Below 1 Ω |
Standard Resistance (Check for Open):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-3 (IGT1) - B58-108 (IGT1) |
Always |
Below 1 Ω |
B49-3 (IGT2) - B58-107 (IGT2) |
Always |
Below 1 Ω |
B50-3 (IGT3) - B58-106 (IGT3) |
Always |
Below 1 Ω |
B51-3 (IGT4) - B58-105 (IGT4) |
Always |
Below 1 Ω |
Standard Resistance (Check for Short):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-2 (IGF) or B58-23 (IGF1) - Body ground |
Always |
10 kΩ or higher |
B49-2 (IGF) or B58-23 (IGF1) - Body ground |
Always |
10 kΩ or higher |
B50-2 (IGF) or B58-23 (IGF1) - Body ground |
Always |
10 kΩ or higher |
B51-2 (IGF) or B58-23 (IGF1) - Body ground |
Always |
10 kΩ or higher |
Standard Resistance (Check for Short):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B48-3 (IGT1) or B58-108 (IGT1) - Body ground |
Always |
10 kΩ or higher |
B49-3 (IGT2) or B58-107 (IGT2) - Body ground |
Always |
10 kΩ or higher |
B50-3 (IGT3) or B58-106 (IGT3) - Body ground |
Always |
10 kΩ or higher |
B51-3 (IGT4) or B58-105 (IGT4) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs (See page ).
(e) Turn the ignition switch off and wait for at least 30 seconds.
(f) Shuffle the arrangement of the ignition coils with igniters (among No. 1 to No. 4 cylinders).
NOTICE:
Do not shuffle the connectors.
(g) Perform a simulation test.
(h) Enter the following menus: Powertrain / Engine / Trouble Codes.
(i) Read the DTCs.
Result |
Proceed to |
---|---|
Same DTC output |
A |
Different ignition coil DTC output |
B |
HINT:
Perform "Inspection After Repair" after replacing the ignition coil (See page ).
A |
REPLACE ECM |
B |
REPLACE IGNITION COIL |
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Terminals Of Ecu
TERMINALS OF ECU
1. TCM
HINT:
Each TCM terminal standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal
No. (Symbol)" for the terminals to be inspected. The st ...
Unmatched Key Code (B2795)
DESCRIPTION
This DTC is stored when a key with a key code that has not been registered in
the ECU is inserted into the ignition key cylinder.
DTC No.
DTC Detection Condition
Trouble Area
B2795
Ke ...