LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 1996 >> Sidekick JS, 2D Utility, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 1.8L >> Circuit Tests >> DTC P0136 - Ho2S No. 2 Circuit Malfunction
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0136 - Ho2S No. 2 Circuit Malfunction

NOTE: Before replacing HO2S No. 2, inspect sensor for contamination. If contamination is present, determine cause and repair before installing a new HO2S No. 2.
  1. Connect scan tool to Data Link Connector (DLC). Drive vehicle for at least 5 minutes at 35 MPH or greater with engine coolant temperature at 158°F (70°C) or greater. Observe OXYGEN SENSOR B1 S1 parameter on scan tool while sharply increasing engine RPM and returning to idle. If reading is about zero volts, go to next step. If reading varies between zero and one volt, check for an intermittent problem. See TESTS W/O CODES article. If reading is greater than one volt, go to step 3).
  2. Turn ignition off. Disconnect HO2S No. 2 harness connector. Start engine. Using a voltmeter, measure voltage between terminals No. 1 and 2 of HO2S No. 2 while sharply increasing engine RPM. See Figure . If reading varies between 0.1 and 0.9 volt, go to step 4). If reading is not as specified, replace HO2S No. 2. Retest system.
  3. Turn ignition off. Disconnect HO2S No. 2 harness connector. Turn ignition on. Observe OXYGEN SENSOR B1 S1 parameter on scan tool. If reading is about zero volts, replace HO2S No. 2. If reading is not as specified, check Red wire between PCM and HO2S No. 2 for a short to power. Repair as necessary. If wire is okay, replace PCM. Retest system.
  4. Check Red wire between PCM and HO2S No. 2 for an open, short to ground or short to Gray/Red wire. Check Red wire between PCM and HO2S No. 2 for an open or poor connection. Repair as necessary. If wires and connections are okay, replace PCM.
scientia non olet · About LEMON Manuals