H60 - Attempt to Generate DTCs 1131 and 1151

- Key Off.

- HO2S disconnected.

- Jumper HO2S Signal at the HO2S harness connector to the battery negative post.

- Activate Key On Engine Running (KOER) Self-Test.

- Are DTCs 1131 or 1151 present?

YES -- REMOVE jumper. GO to H61. H61 - HO2S Check

NO -- REMOVE jumper. RECONNECT HO2S. DISCONNECT 104 pin connector. INSPECT both ends of connector for damaged or pushed out pins, moisture, corrosion, loose pins etc. and service as necessary. If OK, REPLACE PCM. RERUN KOER Self-Test. Diagnostic Subroutines (DSR) - Extracting Codes