DTC Detection Logic
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
The Engine Control Module (ECM) detected a loss of communication with the after treatment SCR temperature sensor module.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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U1612-00 |
(Loss Communication with SCR Temperature Sensor Module) |
1 |
Diagnosis condition |
Ignition switch is ON or engine running. |
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Signal (terminal) |
(-) |
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Threshold |
J1939 proprietary EGTS dual cold junction message not received. |
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Diagnosis delay time |
Diagnostic runs continuously when the engine is running. |
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2 |
Diagnosis condition |
Ignition switch is ON or engine running. |
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Signal (terminal) |
(-) |
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Threshold |
J1939 proprietary EGTS triple message not received. |
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Diagnosis delay time |
Diagnostic runs continuously when the engine is running. |
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