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U1A00 · Manufacturer communications

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

U1A00 ← What does this code mean?

6 Results

SSM 54727 ↗

FORD, LINCOLN · 2026-04-08

Some 2024 F-150/Escape/Corsair vehicles may exhibit no audio/no volume with diagnostic trouble code (DTC) U1A00:87 stored in the accessory protocol interface module (APIM). This may be due to the software in the front audio control module (ACM). To correct the condition, reprogram the ACM using the latest software level of the Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 18C869 and labor operations 12651D and 12651D4.

SSM 54630 ↗

FORD, LINCOLN · 2026-03-05

Some 2024 F-150/Escape/Corsair vehicles may exhibit no audio/no volume with diagnostic trouble code (DTC) U1A00:87 stored in the accessory protocol interface module (APIM). This may be due to the software in the front audio control module (ACM). To correct the condition, reprogram the ACM using the latest software level of the Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 18806 and labor operations 12651D and 12651D4.

SSM 52261 ↗

FORD, LINCOLN · 2024-02-14

Some 2023 Escape vehicles with hybrid powertrain built on or before 27-Oct-2023 and 2023 Corsair vehicles with hybrid powertrain built on or before 24-Oct-2023 may exhibit an intermittent no audio condition with diagnostic trouble code (DTC) U1A00:87 stored in the accessory protocol interface module (APIM). When the audio volume control is adjusted using the steering wheel or the center display screen, the center display screen may or may not show a visual change with no change in audio volume. This may be due to the software installed in the audio control module (ACM). To correct this condition, reprogram the ACM using the latest software level of the Ford Diagnosis and Repair System (FDRS) diagnostic tool. For claiming, use causal part 18C869 and applicable labor operation in Section 10…

SSM 46048 ↗

FORD, LINCOLN · 2016-09-02

Some 2016-2017 Ford and Lincoln vehicles equipped with SYNC 3 may have DTCs U3000:04, B108E:12 and/or U1A00:87 present in the APIM. If these DTCs are present and no other symptoms are reported by the customer, then clear the DTCs and retest. If the DTC(s) do not return then no further repairs should be attempted. If one or more DTCs return as current faults and/or the customer reports other symptoms, then refer to Workshop Manual, Section 415-00 for further diagnostics. The SYNC version can be confirmed via OASIS.

SSM-45809 ↗

FORD, LINCOLN · 2016-05-09

SYNC 3 ACCESSORY PROTOCOL INTERFACE MODULE (APIM) DTCS U3000 OR B108E OR U1A00

SSM72214 ↗

LAND ROVER · 2015-04-08

"ISSUE BLIND SPOT MONITORING INOPERATIVE WITH THE FOLLOWING DTC’S LOGGED: U0010 - 87 MISSING MESSAGE. U1A00 - 88 PRIVATE NETWORK OFF BUS. CAUSE SIDE OBJECT DETECTION LEFT/RIGHT - SODL AND SODR NOT CONFIGURED."