DTC P0133, P0153: Notes

DTC P0133, P0153 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0133 DTC P0153	HO2S (RF) circuit malfunction HO2S (LF) circuit malfunction
DETECTION CONDITION	The PCM monitors the inversion cycle period, lean-to-rich response time and rich-to-lean response time of the sensor. The PCM calculated the average of the invention cycle period specified invention cycles, average response time from lean-to-rich, and from rich-to-lean when the following monitoring conditions are met. If the following condition, the PCM determines that the circuit has a malfunction. The average valve of invention cycle period or lean-to-rich/rich-to-lean response time is more than the threshold value. MONITORING CONDITIONS Drive mode 3 The following conditions are to be met: Calculation load 18-58% , (at engine speed 2,000 RPM ) Engine speed 1,400-2,500 RPM (MTX) Engine speed 1,200-2,500 RPM (ATX) Engine coolant temperature is -10 °C {14 °F} or above Front HO2S signal invention cycle is above 10 cycle The inversion cycle period and the lean-to-rich/rich-to-lean response time cannot be measured even once even though the accumulated occurrence time of the following monitoring conditions has exceeded the prescribed time limit. MONITORING CONDITIONS Drive mode 3 The following conditions are to be met: Calculation load 18-58% , (at engine speed 2,000 RPM ) Engine speed 1,400-2,500 RPM (MTX) Engine speed 1,200-2,500 RPM (ATX) Engine coolant temperature is -10 °C {14 °F} or above Diagnostic support note This is an intermittent monitor (HO2S). The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle. DIAGNOSTIC MONITORING TEST RESULTS is available. FREEZE FRAME DATA is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	HO2S (RF, LF) deterioration HO2S (RF, LF) heater malfunction Looseness front HO2S Leakage exhaust system Fuel filter clogged or restricted Fuel pump malfunction Fuel leakage on fuel line from fuel distribution pipe and fuel pump Pressure regulator malfunction Fuel return hose clogged Purge solenoid hoses improper connection Purge solenoid valve malfunction Insufficient compression Engine malfunction PCM malfunction

DTC P0133
DTC P0153

HO2S (RF) circuit malfunction
HO2S (LF) circuit malfunction

DETECTION CONDITION

The PCM monitors the inversion cycle period, lean-to-rich response time and rich-to-lean response time of the sensor. The PCM calculated the average of the invention cycle period specified invention cycles, average response time from lean-to-rich, and from rich-to-lean when the following monitoring conditions are met. If the following condition, the PCM determines that the circuit has a malfunction.
- The average valve of invention cycle period or lean-to-rich/rich-to-lean response time is more than the threshold value.
  MONITORING CONDITIONS
- Drive mode 3
- The following conditions are to be met:
  - Calculation load 18-58% , (at engine speed 2,000 RPM )
  - Engine speed 1,400-2,500 RPM (MTX)
  - Engine speed 1,200-2,500 RPM (ATX)
  - Engine coolant temperature is -10 °C {14 °F} or above
  - Front HO2S signal invention cycle is above 10 cycle
The inversion cycle period and the lean-to-rich/rich-to-lean response time cannot be measured even once even though the accumulated occurrence time of the following monitoring conditions has exceeded the prescribed time limit.
MONITORING CONDITIONS
- Drive mode 3
- The following conditions are to be met:
  - Calculation load 18-58% , (at engine speed 2,000 RPM )
  - Engine speed 1,400-2,500 RPM (MTX)
  - Engine speed 1,200-2,500 RPM (ATX)
  - Engine coolant temperature is -10 °C {14 °F} or above

Diagnostic support note

This is an intermittent monitor (HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
DIAGNOSTIC MONITORING TEST RESULTS is available.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

HO2S (RF, LF) deterioration
HO2S (RF, LF) heater malfunction
Looseness front HO2S
Leakage exhaust system
Fuel filter clogged or restricted
Fuel pump malfunction
Fuel leakage on fuel line from fuel distribution pipe and fuel pump
Pressure regulator malfunction
Fuel return hose clogged
Purge solenoid hoses improper connection
Purge solenoid valve malfunction
Insufficient compression
Engine malfunction
PCM malfunction