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TSB Revision DIAGNOSTIC TROUBLE CODE PROCEDURES 13Ac-257 . CIRCUIT OPERATION • A voltage corresponding to the oxygen concen- tration in the exhaust gas is sent to the PCM (ter- • Terminal No. 2 of the left bank heated oxygen sensor (rear) is grounded with PCM (terminal No. . TECHNICAL DESCRIPTION • The output signal of the left bank heated oxygen sensor (front) is compensated by the output sig- • The PCM checks for an open circuit in the left bank heated oxygen sensor (rear) output line. . DTC SET CONDITIONS Check Conditions • 2 seconds or more have passed since the start- ing sequence was completed. Judgment Criteria • Left bank heated oxygen sensor (rear) output voltage has continued to be 1.2 volts or higher for . TROUBLESHOOTING HINTS (The most likely • Short circuit in left bank heated oxygen sensor (rear) output line. • PCM failed. AK201279 CONNECTOR: C-15 C-15(B) AB RIGHT BANK AK201038AF CONNECTOR: D-135 PCM D-135(GR) AK201049 CONNECTOR: D-116 D-116 AC AK201049 D-14 AB CONNECTOR: D-14 AK201052 E-112 AB CONNECTOR: E-112 |