Nissan Rogue (T33) 2021-Present Service Manual: P1148 Closed Loop Control
DTC Description
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| P1148 | 00 |
CLOSED LOOP-B1 (Closed loop —b1) |
Diagnosis condition | — |
| Signal (terminal) | — | |||
| Threshold | The closed loop control function does not operate even when Nissan Ariya vehicle is being driven in the specified condition | |||
| Diagnosis delay time | — | |||
POSSIBLE CAUSE
-
Harness or connectors (A/F sensor 1 circuit is open or shorted.)
-
A/F sensor 1
-
A/F sensor 1 heater
FAIL-SAFE
Not applicable
DTC Confirmation Procedure
CHECK DTC PRIORITY
If DTC P1148 is displayed with another DTC for A/F sensor 1, perform the trouble diagnosis for the corresponding DTC.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable. Refer to DTC Index.
NO>>INSPECTION END
DTC Diagnosis Procedure
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
Refer to DTC Index.
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