DTC P1154 Acura
HO2S-21 (Bank 2 Sensor 1) Transition Time Ratio
HO2S-21 (Bank 2 Sensor 1) Transition Time Ratio
Description
DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0135, P0300, P0301-P0306, P0441 and P1441 not set, system voltage from 10-16v, engine speed from 1500-3000 rpm in closed loop for 1 minute, ECT s
Cause and Solution
Air leaks at the exhaust manifold or exhaust pipes
HO2S signal circuit is open or shorted to ground (intermittent)
HO2S heater power circuit is open, or the heater has failed
Video Guide
Diagnostic Info
- DTC Code: P1154
- Brand: Acura