id0102f3329900
| DTC P2208:13 DTC P2208:1D |
NOx sensor heater circuit |
|---|---|
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DETECTION CONDITION
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• The SCR control module monitors the NOx sensor heater control status 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 control signal voltage 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 control circuit.
Diagnostic support note
• The MIL illuminates if the SCR control unit detects the above malfunction condition in first drive cycle.
• The SCR warning light flashes if the NOx sensor control module detects the above malfunction condition in first drive cycle.
• 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.
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POSSIBLE CAUSE
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• NOx sensor heater/NOx sensor control module malfunction
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Diagnostic procedure
| STEP |
INSPECTION |
ACTION |
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|---|---|---|---|
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1
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VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED
• Have FREEZE FRAME DATA (mode2) or snapshot data been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA (mode2) and snapshot data on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
|
Yes
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Perform the repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
|
|
No
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Go to the next step.
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3
|
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
• Is DTC P2208:13 or P2208:1D on FREEZE FRAME DATA (mode2)?
|
Yes
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Go to the next step.
|
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No
|
Go to troubleshooting for DTC on FREEZE FRAME DATA (mode2).
(See
DTC TABLE [MZR-CD 2.2].)
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||
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4
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VERIFY TROUBLESHOOTING OF DTC P2208:13 OR P2208:1D 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?
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Yes
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Replace the NOx sensor, then go to the next step.
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No
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Go to the next step.
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5
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”. (See
AFTER REPAIR PROCEDURE [MZR-CD 2.2].)
• Are any DTCs present?
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Yes
|
Go to the applicable DTC inspection.
(See
DTC TABLE [MZR-CD 2.2].)
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No
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DTC troubleshooting completed.
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