1l
Troubleshooting
Diagnostic Trouble Gode (DTCI Chart
*: These DTCS will be indicated by the blinking ot the lvalfunction Indicator Lamp (MlL) with the SCS service connector
connected.
Ia
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DTC
lMlL indication*lDetection ltemProbabls CausePage
P0107 (3)
Manifold Absolute
Pressure Circuit
Low Input
Open or short in MAP sensor circuit
MAP sensor
ECM
'11-54
P0108 (31
Manifold Absolute
Pressure Circuit
High Input
Open in MAP sensor circuit
MAP sensor
ECM
tt-5t,
P0112 (10)
Intake Air
Temperature Circuit
Low Input
Short in IAT sensor circuit
IAT sensor
ECM
11.58
P0113 {10)
lntake Air
Temperature Circuit
High Input
Open in IAT sensor circuit
IAT sensor
ECM
1' 1-59
P0116 (86)
Engine Coolant
Temperature Circuit
Range/Performance Problem
. ECT sensor' Cooling system11-60
P0117 (6)
Engine Coolant
Temperature Circuit
Low Input
Short in ECT sensor circuit
ECT sensor
ECM
1 ' t-61
P0118 {6)
Engine Coolant
Temperature Circuit
High Input
Open in ECT sensor circuit
ECT sensor
ECt\,4
1't -62
P0122l7l
Throttle Position
Circuit
Low Input
Open or shon in TP sensor circuit
TP sensor
ECM
11,63
P0123 (7)
Throttle Position
Circuit
High Input
Open in TP sensor circuit
TP sensor
ECM
I t-oc
P0131 (1 )
Primary Heated Oxygen Sensor
Circuit Low Voltage (Sensor 1)
Shon in Primary HO2S (Sensor'l) circuit
Primary H02S {Sensor 1)
Fuel supply system
ECM
11-67
P0132 (1)Primary Heated Oxygen Sensor
Circuit High Voitage (Sensor 1)
Open in Primary HO2S (Sensor 1) circuit
Primary HO2S (Sensor 1)
ECM
11-69
P0133 (61)Primary Heated Oxygen Sensor
Slow Response (Sensor 1)
. Primary HO2S (Sensor 1). Exhaust system1 1-70
,r:' 11-42
L
PGM-FI System
Primary,Heated Oxygen Sensor (HO2S) (Sensor 1) (cont'dl
The scan tool indicates Diagnostic Trouble Code (DTC) P0133: A slow response problem in the Primary
Heated Oxygen Sensor (HO25) (Sensor 1) circuit.
Description
By controlling the airlfuel ratio with a Primary HO2S (Sensor 'l) and a Secondary HO2S (Sensor 2), the deterioration of the
primary HO2S {Sensor 1) can be evaluated by its teedback period. When the feedback period of the HO2S exceeds a cer-
lain value during stable driving conditions, the sensor will be judged as deteriorated.
When deterioration has been detected during two consecutive trips, the MIL comes on and DTC P0133 will be stored
NOTE: ll DTC P013't, P0132 and/or P0'135 are stored at the same time as DTC P0133, troubleshoot those DTCS first, then
troubleshoot DTC P0133.
Possible Cause
. Primary HO2S (sensor 1) Deterioration
o Primary HO2S Heater (sensor 1) Deterioration
. Exhaust system leakage
Troubl€shooting Flowchart
')
litll r
- Tho MIL has boon raDortcd on.- DTC P0133 is storcd.
Problem verificttion:1. Do the ECM Reset Procedure.2. Start the engine. Hold thoengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator fan comes on.3. Connect the SCS service con-
4. Test'drive Lrnder f o llowingconditions.* 55 mph (89 km/h) steadyspeed- NT in E position, M/T in5th gear- Until readiness code com€son
lnt.flnittcnt ftilu... ay3tam ia OKat thb tiinr. Ch.ck fo. poor con-necliona o. looaa wita! al Cll3
lPrim.ry HO2S lscn.or lll lndECM.
ls DTC P0133 indicated?
Roplacs the Primary HO2S lscn-3or 1),