DTC P2209:00 [MZR-CD 2.2]

DTC P2209:00	NOx sensor heater circuit range/performance
DETECTION CONDITION	• The SCR control module monitors the NOx sensor heater temperature via the NOx sensor control module while the engine is switched on. If the SCR control module receives a signal in which the NOx sensor heater temperature from the NOx sensor control module is less or more than the threshold for 5 s or more, the SCR control module detects that there is a malfunction in the NOx sensor heater. Monitoring condition • Battery voltage: 9—16 V Diagnostic support note • The MIL illuminates if the SCR control unit detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the SCR control unit. • The SCR warning light flashes if the NOx sensor control module detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the SCR control unit. • PENDING CODE is available if the NOx sensor control module detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA (mode2) and snapshot data are available. • The DTC is stored in the SCR control unit memory.
POSSIBLE CAUSE	• NOx sensor heater/NOx sensor control module malfunction

DTC P2209:00

NOx sensor heater circuit range/performance

DETECTION CONDITION

• The SCR control module monitors the NOx sensor heater temperature via the NOx sensor control module while the engine is switched on. If the SCR control module receives a signal in which the NOx sensor heater temperature from the NOx sensor control module is less or more than the threshold for 5 s or more, the SCR control module detects that there is a malfunction in the NOx sensor heater.

Monitoring condition

• Battery voltage: 9—16 V

Diagnostic support note

• The MIL illuminates if the SCR control unit detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the SCR control unit.

• The SCR warning light flashes if the NOx sensor control module detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the SCR control unit.

• PENDING CODE is available if the NOx sensor control module detects the above malfunction condition during the first drive cycle.

• FREEZE FRAME DATA (mode2) and snapshot data are available.

• The DTC is stored in the SCR control unit memory.

POSSIBLE CAUSE

• NOx sensor heater/NOx sensor control module malfunction

STEP	INSPECTION	ACTION
1	VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED • Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?	Yes	Go to the next step.
No	Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform the repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
3	IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2) • Is DTC P2209:00 on FREEZE FRAME DATA (mode2)?	Yes	Go to the next step.
No	Go to troubleshooting for DTC on FREEZE FRAME DATA (mode2). (See DTC TABLE [MZR-CD 2.2].)
4	VERIFY TROUBLESHOOTING OF DTC P2209:00 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the SCR control unit memory using the M-MDS. • Switch the ignition ON. • Retrieve the DTC using the M-MDS. • Is the PENDING CODE for this DTC present?	Yes	Replace the NOx sensor, then go to the next step. (See NOX SENSOR REMOVAL/INSTALLATION [MZR-CD 2.2].)
No	Go to the next step.
5	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR-CD 2.2].)
No	DTC troubleshooting completed.

STEP

INSPECTION

ACTION

VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED

• Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?

Yes

Go to the next step.

Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.

VERIFY RELATED SERVICE INFORMATION AVAILABILITY

• Verify related Service Information availability.

• Is any related Service Information available?

Yes

Perform the repair or diagnosis according to the available Service Information.

• If the vehicle is not repaired, go to the next step.

Go to the next step.

IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)

• Is DTC P2209:00 on FREEZE FRAME DATA (mode2)?

Yes

Go to the next step.

Go to troubleshooting for DTC on FREEZE FRAME DATA (mode2).

(See DTC TABLE [MZR-CD 2.2].)

VERIFY TROUBLESHOOTING OF DTC P2209:00 COMPLETED

• Make sure to reconnect all disconnected connectors.

• Clear the DTC from the SCR control unit memory using the M-MDS.

• Switch the ignition ON.

• Retrieve the DTC using the M-MDS.

• Is the PENDING CODE for this DTC present?

Yes

Replace the NOx sensor, then go to the next step.

(See NOX SENSOR REMOVAL/INSTALLATION [MZR-CD 2.2].)

Go to the next step.

VERIFY AFTER REPAIR PROCEDURE

• Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [MZR-CD 2.2].)

DTC troubleshooting completed.