THEFT DETERRENT / KEYLESS ENTRY ENTRY AND START SYSTEM(for Start Function) B2286 Runnable Signal Malfunction B228A Engine Speed Signal Circuit P0335 Crankshaft Position Sensor Circuit Malfunction (NE Signal)
DESCRIPTION
These DTCs are stored when the engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication do not match.
- HINT:
- ·
DTC B2286 is not stored for vehicles with stop and start system.
·DTC B228A is stored only for vehicles with stop and start system.
·When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B2286 | Runnable Signal Malfunction | The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication (1-trip detection logic*1) do not match. | ·
SFI system*2 ·
ECD system*3 ·
Certification ECU (smart key ECU assembly) ·
Harness or connector |
Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and reconnect the cable to the negative (-) battery terminal. Wait 20 seconds or more with the engine switch off, then start the engine and maintain an engine speed of 1000 rpm or more for 20 seconds or more. |
| B228A | Engine Speed Signal Circuit | The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication (1-trip detection logic*1) do not match. | ·
SFI system*2 ·
ECD system*3 ·
Certification ECU (Smart key ECU assembly) ·
Harness or connector |
DTC Output Confirmation Operation:
Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and reconnect the cable to the negative (-) battery terminal. Wait 20 seconds or more with the engine switch off, then start the engine and maintain an engine speed of 1000 rpm or more for 20 seconds or more. |
| P0335 | Crankshaft Position Sensor Circuit Malfunction (NE Signal) | The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication (1-trip detection logic*1) do not match. | ·
SFI system*2 ·
ECD system*3 ·
Certification ECU (Smart key ECU assembly) ·
Harness or connector |
DTC Output Confirmation Operation:
Allow the engine to idle for 10 seconds or more. |
*1: Only detected while a malfunction is present and the engine switch is on (IG).
*2: for 7GR-FKS
*3: for 1GD-FTV
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
·
When the signal sent via either the direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior. (A malfunction is detected after the engine switch is turned on (IG).) ·
When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the engine cannot be started. However, the engine can be started after the engine switch has been turned off. |
·
When the signal sent via either direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior. ·
When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle is moving: If the following conditions are met, it can be determined that the malfunction is not in CAN communication but in the direct line (NE).
-
When the engine switch is pressed, the system controls the engine based on the starter OFF permission flag (perfect injection signal judgment) via CAN communication, causing the engine to stop cranking. -
When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via CAN communication, causing the engine to stop cranking. If the following conditions are met, it can be determined that the malfunction is not in the direct line (NE) but in CAN communication.
-
When the engine switch is pressed, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. -
When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. If the following conditions are met, it can be determined that there is a malfunction in both CAN communication and the direct line (NE).
-
When the engine switch is pressed, the engine stops cranking after 6 seconds. -
When the engine switch is pressed and held, the engine remains cranking for up to 30 seconds. |
| DTC No. | Data List and Active Test |
|---|---|
| B2286
B228A P0335 |
Power Source Control
·
Engine Condition Starting Control
·
Engine Speed |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
·The entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Start Function) after confirming that the communication systems are functioning properly.
·Inspect the fuses of circuits related to this system before performing the following procedure.
·Before replacing the certification ECU (smart key ECU assembly), refer to the Service Bulletin.
·After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Power Source Control / Data List.
Read the Data List according to the display on the GTS.
- Body Electrical > Power Source Control > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note Engine Condition Engine state Stop or Run Stop: Engine stopped
Run: Engine running-
- Body Electrical > Power Source Control > Data List
-
Tester Display Engine Condition - 50003 223 15
Enter the following menus: Body Electrical / Starting Control / Data List.
Read the Data List according to the display on the GTS.
- Body Electrical > Starting Control > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note Engine Speed Engine speed 0 to 16383 rpm Fluctuates in accordance with engine speed -
- Body Electrical > Starting Control > Data List
-
Tester Display Engine Speed - 50003 221 8
- OK:
The GTS display changes correctly in response to the engine condition.
- Result:
Proceed to OK (for 7GR-FKS) OK (for 1GD-FTV) NG
OK (for 7GR-FKS)
OK (for 1GD-FTV)
for 1GD-FTV (w/ DPF):
for 1GD-FTV (w/ EGR Cooler):
for 1GD-FTV (w/o EGR Cooler):
for 1GD-FTV (for Water Cooled Type Intercooler):
for 1GD-FTV (w/ Exhaust Gas Temperature Sensor for EGR):
NG
Disconnect the N154 certification ECU (smart key ECU assembly) connector.
for 7GR-FKS:
Disconnect the A1 ECM connector.
for 1GD-FTV:
Disconnect the N2 ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for 7GR-FKS Tester Connection Condition Specified Condition N154-16 (NE) - A1-15 (NEO) Always Below 1 Ω N154-16 (NE) or A1-15 (NEO) - Other terminals and body ground Always 10 kΩ or higher
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N154-16 (NE) - N2-23 (NEO) | Always | Below 1 Ω |
| N154-16 (NE) or N2-23 (NEO) - Other terminals and body ground | Always | 10 kΩ or higher |
- Result:
Proceed to OK NG
OK
NG
| *a | Component with harness connected
(Certification ECU (Smart Key ECU Assembly)) |
Reconnect the certification ECU (smart key ECU assembly) connector.
for 7GR-FKS:
Reconnect the A1 ECM connector.
for 1GD-FTV:
Reconnect the N2 ECM connector.
Using an oscilloscope, check the engine speed input signal waveform at the terminal of the certification ECU (smart key ECU assembly).
- OK:
Tester Connection Condition Specified Condition N154-16 (NE) - Body ground Engine stopped No pulse generation Engine running Pulse generation
- Result:
Proceed to OK NG (for 7GR-FKS) NG (for 1GD-FTV)
OK
NG (for 7GR-FKS)
NG (for 1GD-FTV)
for 1GD-FTV (w/ DPF):
for 1GD-FTV (w/ EGR Cooler):
for 1GD-FTV (w/o EGR Cooler):
for 1GD-FTV (for Water Cooled Type Intercooler):
for 1GD-FTV (w/ Exhaust Gas Temperature Sensor for EGR):