DTC P0155 Cadillac

Description

P0135, P0141, P0155, or P0161 DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0128, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0220, P0222, P0223, P0442, P0443, P0446, P0449, P0455, P0496, P1516, P2101, P2119, P2135, or P2176 are not set. The engine coolant temperature (ECT) is greater than 50°C (122°F). The ignition voltage is between 10-32 V. The engine run time is greater than 300 s. The engine speed is between 500-3,000 RPM. The DTCs run once per drive cycle when the above conditions are met for 120 s.