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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P0031, DTC P0032, DTC P0037, DTC P0038, DTC P0051, DTC P0052, DTC P0057 Or DTC P0058 >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

These DTCs use two-trip detection logic. DTC is set when heated oxygen sensor heater current draw exceeds 2 amps or heated oxygen sensor heater current draw is 0.2 amp or less when heater operates. If DTC exists, ECM will operate in fail-safe mode and the heater on oxygen sensor will be turned off. Possible causes are:

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