LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Oldsmobile >> 1998 >> Intrigue Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Engine Component Tests - 3.8L >> Computerized Engine Controls >> Diagnostic Trouble Codes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Codes

TROUBLE CODE DEFINITION

Code No. Circuit Affected
P0101 MAF System Performance
P0102 MAF Sensor Circuit-Low Frequency
P0103 MAF Sensor Circuit-High Frequency
P0107 MAP Sensor Circuit-Low Voltage
P0108 MAP Sensor Circuit-High Voltage
P0112 IAT Sensor Circuit-Low Voltage
P0113 IAT Sensor Signal Voltage High
P0117 ECT Sensor Circuit Low Voltage
P0118 ECT Sensor Signal High Voltage
P0121 TP Sensor System Performance
P0122 TP Sensor Circuit-Low Voltage
P0123 TP Sensor Circuit-High Voltage
P0125 ECT Excessive Time To Closed Loop
P0131 HO2S Circuit Low Voltage-Sensor 1
P0132 HO2S Circuit High Voltage-Sensor 1
P0133 HO2S Slow Response-Sensor 1
P0134 HO2S Insufficient Activity-Sensor 1
P0135 HO2S Heater Circuit-Sensor 1
P0137 HO2S Circuit Voltage Low-Sensor 2
P0138 HO2S Circuit Voltage High-Sensor 2
P0140 HO2S Insufficient Activity-Sensor 2
P0141 HO2S Heater Circuit-Sensor 2
P0171 Fuel Trim System Lean
P0172 Fuel Trim System Rich
P0201 Injector No. 1 Control Circuit
P0202 Injector No. 2 Control Circuit
P0203 Injector No. 3 Control Circuit
P0204 Injector No. 4 Control Circuit
P0205 Injector No. 5 Control Circuit
P0206 Injector No. 6 Control Circuit
P0230 Fuel Pump Control Circuit
P0300 Engine Misfire Detected
P0325 Knock Sensor Module Circuit
P0327 Knock Sensor Circuit-Bank 1
P0332 Knock Sensor Circuit-Bank 2
P0336 18X Reference Signal Circuit
P0341 CMP Sensor Circuit Performance
P0403 EGR Solenoid Control Circuit
P0404 EGR Valve Pintle Stuck Open
P0405 EGR Pintle Position Sensor Circ. Low Voltage
P0420 TWC System Low Efficiency
P0440 EVAP System
P0442 EVAP System-Small Leak Detected
P0446 EVAP System Canister Vent Blocked
P0452 Tank Pressure Sensor Circuit Fault-Low Voltage
P0453 Tank Pressure Sensor Circuit Fault-High Voltage
P0506 IAC System RPM Low
P0507 IAC System RPM High
P0530 A/C Refrigerant Pressure Sensor Circuit
P0560 System Voltage
P0601 PCM Memory
P0602 PCM Not Programmed
P0705 (1) Trans. Range Switch Circuit
P0706 (1) Trans. Range Switch Performance
P1106 MAP Sensor Circuit Intermittent High Voltage
P1107 MAP Sensor Circuit Intermittent Low Voltage
P1111 IAT Sensor Circuit Intermittent High Voltage
P1112 IAT Sensor Circuit Intermittent Low Voltage
P1114 ECT Sensor Circuit Intermittent Low Voltage
P1115 ECT Sensor Circuit Intermittent High Voltage
P1121 TP Sensor Intermittently High Voltage
P1133 HO2S Insufficient Switching-Sensor 1
P1134 HO2S Transition Time Ratio-Sensor 1
P1257 Supercharger System Overboost
P1351 IC Circuit Open
P1352 By-Pass Line/Circuit Open
P1361 IC Circuit Not Toggling
P1362 By-Pass Circuit Shorted
P1374 3X Reference Circuit
P1380 EBCM/EBTCM DTC Rough Road Data Unstable
P1381 Misfire Detected, No EBCM/PCM/VCM Serial Data
P1404 EGR Valve Pintle Stuck Open
P1441 EVAP System Flow During Non-Purge
P1554 Cruise Control Status Circuit
P1571 TCS Desired Torque Circuit
P1573 EBTCM/PCM Serial Data Circuit
P1602 EBCM/EBTCM Serial Data Circuit
P1605 HVAC Serial Data Circuit
P1610 Standard Body Module Serial Data Circuit
P1626 Loss Of Serial Communication W/Theft Deterrent Or Theft Deterrent System Fuel Enable Circuit
P1629 Theft Deterrent Crank Signal Malfunction
P1630 Theft Deterrent System-PCM In Learn Mode
P1631 Theft Deterrent System-Password Incorrect
P1635 5-Volt Reference "A" Circuit
P1639 5-Volt Reference "B" Circuit
P1641 A/C Relay Control Circuit
P1646 Boost Control Solenoid Control Circuit
P1651 Fan No. 1 Relay Control Circuit
P1652 Fan No. 2 Relay Control Circuit
P1662 Cruise Control Inhibit Control Circuit
P1665 EVAP Vent Solenoid Control Circuit
P1667 Fuel Pump PWM Control Circuit
P1671 MIL Control Circuit
P1673 Engine Hot Light Control Circuit
P1676 EVAP Vent Solenoid Control Circuit
P1689 TCS Delivered Torque Control Circuit
(1) Covered in entirety in AUTO TRANS DIAGNOSIS - 4T65-E article in the AUTO TRANS DIAGNOSIS section.