Secondary HO2S Heater Monitor
WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
SECONDARY HO2S HEATER MONITOR OPERATION TABLE
| DTCs | P0037, P0038 (for bank 1), P0057, P0058(for bank 2) |
| Monitor execution | Continuous |
| Monitoring Duration | 1.0 sec. |
ENABLE CONDITIONS TABLE
| Parameter | Minimum | Maximum |
|---|---|---|
| P0037, P0057 | ||
| Battery voltage | 11 V | 16 V |
| Heater control | On | |
| P0038, P0058 | ||
| Heater control | On | |
| Heater control | Off | |
TYPICAL MALFUNCTION THRESHOLDS TABLE
| P0037, P0057: Heater current < 0.16 - 0.28 A (according to battery voltage (V)) |
| P0038, P0058: Heater current > 5 A at ON duty pulse or 0.2 A at OFF duty pulse |