C1101 on Nissan
ABS System Battery/Charging Voltage High
C1101 on Nissan vehicles indicates abs system battery/charging voltage high. Au7o has documented this code across 1 Nissan model — most commonly on Altima. This is a chassis (ABS/stability control) code indicating the anti-lock brake or electronic stability module detected battery/charging system voltage outside its acceptable range, typically too high. The ABS module monitors supply voltage because it needs stable power to operate the pump and solenoids safely; out-of-range voltage can make it disable ABS/traction features as a precaution. On most makes this points to a charging-system problem rather than a brake fault, though the exact wording can vary by manufacturer. Typical repair costs on Nissan range from $250 to $700, depending on the specific model and root cause.
Common Causes of C1101
- •Overcharging alternator / faulty voltage regulator
- •Weak, failing, or corroded battery
- •Loose or corroded battery terminals and ground straps
- •Poor connections at the ABS module power feed
- •Damaged charging-system wiring
- •Faulty ABS/EBCM module (less common)
C1101 on Nissan by Model
Nissan Altima(1 issue)
- Front Wheel Bearing and Hub Failure Causing Humming Noise and ABS/Wheel Speed Issues2002-2012
A recurring higher-mileage Altima problem is front wheel bearing wear, often first noticed as a humming or growling noise that increases with road speed. As the bearing deteriorates, owners may feel vibration, looseness, or see ABS warnings if the integrated wheel speed signal becomes erratic. This is widely reported in repair databases and owner forums, especially on cars driven on rough roads.
Looking for C1101 on a different make?
View C1101 across all makes →Frequently Asked Questions
What does C1101 mean on Nissan?▼
C1101 stands for "ABS System Battery/Charging Voltage High." This is a chassis (ABS/stability control) code indicating the anti-lock brake or electronic stability module detected battery/charging system voltage outside its acceptable range, typically too high. The ABS module monitors supply voltage because it needs stable power to operate the pump and solenoids safely; out-of-range voltage can make it disable ABS/traction features as a precaution. On most makes this points to a charging-system problem rather than a brake fault, though the exact wording can vary by manufacturer. On Nissan specifically, this code is documented across 1 model.
What causes C1101 on Nissan vehicles?▼
Common causes on Nissan: Overcharging alternator / faulty voltage regulator, Weak, failing, or corroded battery, Loose or corroded battery terminals and ground straps, Poor connections at the ABS module power feed, Damaged charging-system wiring. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1101 on a Nissan?▼
Repair costs on Nissan range from $250 to $700, depending on the specific model and root cause.
Which Nissan models have C1101 documented?▼
Au7o has documented C1101 on 1 Nissan model: Altima.