DTC B1953 Lincoln
Closed Loop Control Function (Includes Hybrid Models)
Closed Loop Control Function (Includes Hybrid Models)
Description
HYBRID MODELS CAUTION: Hybrid systems use very high-voltage battery systems. Before starting any service work involving the battery system, turn the ignition switch OFF and then remove the service plug from pocket in the trunk. After removing the service plug, wait 10 minutes before touching any of the high-voltage connectors and NOTE: On V6 and V8 engines, this applies to Bank 1, except 3.7L which is Bank 2. NOTE: DTC P1148 or P1168 is displayed with another DTC for A F sensor 1. Perform the trouble diagnosis for the corresponding DTC. The closed loop control function for bank 1 does not operate even when vehicle is being driven in the specified condition.
Cause and Solution
Harness or connectors - Air fuel ratio (A F) sensor (sensor 1 on V6 and V8) circuit is open or shorted. Air fuel ratio (A F) sensor (sensor 1 on V6 and V8) Air fuel ratio (A F) sensor (sensor 1 on V6 and V8) heater
Video Guide
Diagnostic Info
- DTC Code: B1953
- Brand: Lincoln