C1102 on Nissan: How to Diagnose & Fix
Manufacturer-Specific Chassis/ABS Sensor Code (commonly Wheel-Speed/Acceleration Switch Circuit)
1 Nissan model · 1 documented issue
C1102 on Nissan by model: symptoms, diagnosis and fix
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)
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 on a Nissan?
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. On Nissan it is documented across 1 model: Altima.
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 on a Nissan?
Repair costs vary widely with the root cause and Nissan model; each issue on this page carries its own estimate where one is published.
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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.