C1102 on 2007-2013 Nissan Altima — Manufacturer-Specific Chassis/ABS Sensor Code (commonly Wheel-Speed/Acceleration Switch Circuit)
1 vehicles · 1 makes
How to diagnose and fix C1102: most-reported vehicles
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Nissan Altima · 2007–2013
The ABS/VDC control unit stores a wheel speed sensor code (C1101-C1104). Nissan's bulletin lists sensor damage, a missing sensor signal, short circuits and bent, corroded or contaminated connector pins as the things to check. 2007-2013 Nissan vehicles equipped with ABS/VDC, which includes the 2007-2012 Altima.
How to Fix
Per Nissan bulletin NTB10-102a, the technician records the active codes, clears them and road-tests above 13 mph to confirm the code returns, then checks the suspect sensor for damage, its output with a wheel sensor tester, the harness for shorts and the connectors for bent pins or corrosion before replacing anything. Nissan says not to replace a sensor based on the code alone. Normal warranty rules apply; this is not a recall or a promise of free repair. A stored code alone does not establish a failed sensor. The sensor, harness or connector repair follows the diagnostic result; do not infer that driving with a brake warning is safe.
Sources for this issue (1)
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C1102 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1102 mean?
C1102 stands for "Manufacturer-Specific Chassis/ABS Sensor Code (commonly Wheel-Speed/Acceleration Switch Circuit)." C1102 is a manufacturer-specific chassis code most often associated with an ABS input circuit. Depending on the make it can refer to a wheel-speed sensor circuit fault or an ABS acceleration (G-sensor) switch circuit failure that the control module has detected. When set it usually disables ABS and traction/stability control and illuminates the related warning lights, while normal (non-assisted) braking is still available. Confirm the exact definition for your vehicle with a capable scan tool or service manual, since the meaning differs by manufacturer.
What are the most common causes of C1102?
The most common causes of C1102 are: Faulty or contaminated wheel speed sensor, Faulty ABS acceleration / G-sensor (on makes that use it), Damaged tone/reluctor ring, Wiring or connector damage in the circuit, Open or shorted sensor circuit, ABS/stability control module fault. The specific cause varies by vehicle.
How much does it cost to fix C1102?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by C1102?
Au7o has documented C1102 across 1 vehicle models from 1 manufacturers: Nissan.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.