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C1101 Battery Voltage High

AutoHex Online Help: Hyundai H-1(A1) 2003
INSPECTION PROCEDURE FOR DIAGNOSTIC TROUBLE CODES

DTC No. C1101, C1102 Voltage out of range

(Low and over voltage)

Probable cause

The voltage of the HECU power supply drops lower than or rises higher than the specified value. If the voltage returns to the specified value, this code is no longer output.

Malfunction of wiring harness or connector

Malfunction of HECU

caution

If battery voltage drops or rises during inspection, this code will be output as well. If the voltage returns to the standard value, the code is no longer output. Before carrying out the following inspection, check the battery level and refill if necessary.