DTC U1026 Chevrolet
Idle Speed System Too High
Idle Speed System Too High
Description
DTC P0106-P0108, P0112-P0113, P0117-P0118, P0121-P0123, P0131-P0141, P0171, P0172, P0201-P0204, P0300, P0336, P0337, P0341, P0342, P0402-P0406, P0502, P1130, P1133, P1134, P1171, P1404, P1441 and P1627 not set, system voltage from 11-16v, ECT sensor more
Cause and Solution
IAC motor control circuit A1, A2, B1 or B2 is openIAC motor control circuit A1, A2, B1 or B2 is shorted to groundIAC motor is damaged or has failed (it may be dirty or sticking)Throttle plate is carbon fouled (it may need to be cleaned)
Video Guide
Diagnostic Info
- DTC Code: U1026
- Brand: Chevrolet