• SECTION 3:
    3-DIGIT DIAGNOSTIC TROUBLE CODES (DTC)
    Codes diplayed during Key-on/Engine-off and Key-on/Engine-on explained here
    • TROUBLE CODES
      • 111
        • SYSTEM PASS
      • 112
        • INTAKE AIR TEMP (IAT) Sensor circuit below minimum voltage 254 degrees F
      • 113
        • INTAKE AIR TEMP (IAT) Sensor circuit above maximum voltage -40 degrees F
      • 114
        • INTAKE AIR TEMP (IAT) higher or lower than expected
      • 116
        • ENGINE COOLANT TEMP (ECT) higher or lower than expected
      • 117
        • ENGINE COOLANT TEMP (ECT) sensor circuit below minimum voltage 254 degrees F
      • 118
        • ENGINE COOLANT TEMP (ECT) sensor circuit above maximum voltage -40 degrees F
      • 121
        • Closed THROTTLE voltage higher or lower than expected
        • Indicates THROTTLE position voltage inconsistant with MAF sensor higher or lower than expected
      • 122
        • THROTTLE POSITION (TP) sensor circuit below minimum voltage
      • 123
        • THROTTLE POSITION (TP) sensor circuit above maximum voltage
      • 124
        • THROTTLE POSITION (TP) sensor voltage higher than expected
      • 125
        • THROTTLE POSITION (TP) sensor voltage lower than expected
      • 126
        • MAP/BARO sensor higher or lower than expected
      • 128
        • MAP sensor vacuum hose damaged/disconnected
      • 129
        • Insufficient MAP/Mass Air Flow (MAF) change during dynamic response test KOER
      • 136
        • Lack of Heated Oxygen Sensor (HO2S-2) switch during KOER indicates LEAN (Bank #2)
      • 137
        • Lack of Heated Oxygen Sensor (HO2S-2) switch during KOER indicates RICH (Bank #2)
      • 139
        • No Heated Oxygen Sensor (HO2S-2) switches detected (Bank #2)
      • 141
        • FUEL SYSTEM indicates LEAN
      • 144
        • No Heated Oxygen Sensor (HO2S-2) switches detected (Bank #1)
      • 157
        • MASS AIR FLOW (MAF) sensor BELOW minimum voltage
      • 158
        • MASS AIR FLOW (MAF) sensor ABOVE maximum voltage
        • Indicates THROTTLE position voltage inconsistant with MAF sensor higher or lower than expected
      • 159
        • MASS AIR FLOW (MAF) sensor higher or lower than expected
      • 167
        • Insufficient throttle position change during dynamic response test (KOER)
      • 171
        • FUEL system at adaptive limits, Heated Oxygen Sensor (H02S-1) unable to switch (Bank #1)
      • 172
        • Lack of Heated Oxygen Sensor (H02S-1) switches, indicates LEAN (Bank #1)
      • 173
        • Lack of Heated Oxygen Sensor (H02S-1) switches, indicates RICH (Bank #1)
      • 175
        • FUEL system at adaptive limits, Heated Oxygen Sensor (H02S-1) unable to switch (Bank #2)
      • 176
        • Lack of Heated Oxygen Sensor (H02S-1) switches, indicates LEAN (Bank #2)
      • 177
        • Lack of Heated Oxygen Sensor (H02S-1) switches, indicates RICH (Bank #2)
      • 179
        • FUEL SYSTEM at lean adaptive limit at part throttle, system RICH (Bank #1)
      • 181
        • FUEL SYSTEM at rich adaptive limit at part throttle, system LEAN (Bank #1)
      • 184
        • Mass Air Flow (MAF) higher than expected
      • 185
        • Mass Air Flow (MAF) lower than expected
      • 186
        • Injector pulsewidth higher than expected (with BARO sensor)
        • Injector pulsewidth higher or MAF lower than expected (without BARO sensor)
      • 187
        • Injector pulsewidth lower than expected (with BARO sensor)
        • Injector pulsewidth lower or MAF higher than expected (without BARO sensor)
      • 188
        • Fuel system at lean adaptive limit at part throttle, system RICH (Bank #2)
      • 189
        • Fuel sytem at rich adaptive limit at part throttle, sytem LEAN (Bank #2)
      • 193
        • Flexible Fuek (FF) sensor circuit failure.
      • 211
        • Profile Ignition Pickup (PIP) circuit failure
      • 212
        • Loss of Ignition Diagnostic Monitor (IDM) input to PCM/SPOUT circuit grounded
      • 213
        • SPOUT circuit open
      • 214
        • Cylinder Identification (CID) circuit failure
      • 215
        • PCM detected coil 1 primary circuit failure (ET)
      • 216
        • PCM detected coil 2 primary circuit failure (EI)
      • 217
        • PCM detected coil 3 primary circuit failure (EI)
      • 218
        • Loss of Ignition Diagnostic Monitor (IDM) signal-left side (dual plug ET)
      • 219
        • Spark timing defaulted to 10 degrees-SPOUT circuit open (EI)
      • 221
        • Spark timing error (EI)
      • 222
        • Loss of Ignition Diagnostic Monitor (IDM) signal-right side (dual plug EI)
      • 223
        • Loss of Dual Plug Inhibit (DPI) control (dual plug EI)
      • 224
        • PCM detected coil 1, 2, 3, or 4 primary circuit failure (dual plug EI)
      • 225
        • Knock not sensed during dynamic response test KOER
      • 226
        • Ignition Diagnostic Module (IDM) signal not received (EI)
      • 232
        • PCM detected coil 1, 2, 3 or 4 primary circuit failure (EI)
      • 238
        • PCM detected coil 4 primary circuit failure (EI)
      • 241
        • ICM to PCM IDM pulsewidth transmission error (EI)
      • 244
        • CID circuit fault present when cylinder balance test requested
      • 311
        • AIR system inoperative during KOER (Bank #1 w/dual HO2S)
      • 312
        • AIR misdirected during KOER
      • 313
        • AIR not bypassed during KOER
      • 314
        • AIR system inoperative during KOER (Bank #2 w/dual HO2S)
      • 326
        • EGR (PFE/DPFE) circuit voltage lower than expected
      • 327
        • EGR (EGRP/EVP/PFE/DPFE) circuit below minimum voltage
      • 328
        • EGR (EVP) closed valve voltage lower than expected
      • 332
        • Insufficient EGR flow detected (EGRP/EVP/PFE/DPFE)
      • 334
        • EGR (EVP) closed valve voltage higher than expected
      • 335
        • EGR (PFE/DPFE) sensor voltage higher or lower than expected during KOER
      • 336
        • Exhaust pressure high/EGR (PFE/DPFE) circuit voltage higher than expected
      • 337
        • EGR (EGRP/EVP/PFE/DPFE) circuit above maximum voltage
      • 338
        • Engine Coolant Temperature (ECT) lower than expected (thermostat test)
      • 339
        • Engine Coolant Temperature (ECT) higher than expected (thermostat test)
      • 341
        • Octane adjust service pin open
      • 381
        • Frequent A/C clutch cycling
      • 411
        • Cannot control RPM during KOER low RPM check
      • 412
        • Cannot control RPM during KOER high RPM check
      • 415
        • Idle Air Control (IAC) system at maximum adaptive lower limit
      • 416
        • Idle Air Control (IAC) system at upper adaptive learning limit
      • 452
        • Insufficient input from Vehicle Speed Sensor (VSS) to PCM
      • 453
        • Servo leaking down (KOER IVSC test)
      • 454
        • Servo leaking up (KOER IVSC test)
      • 455
        • Insufficient RPM increase (KOER IVSC test)
      • 456
        • Insufficient RPM decrease (KOER IVSC test)
      • 457
        • Speed control command switch(s) circuit not functioning (KOER IVSC test)
      • 458
        • Speed control command switch(s) stuck/circuit grounded (KOER IVSC test)
      • 459
        • Speed control ground circuit open (KOER IVSC test)
      • 511
        • PCM Read Only Memory (ROM) test failure KOEO
      • 512
        • PCM Keep Alive Memory (RAM) test failure
      • 513
        • PCM internal voltage failure (KOER)
      • 519
        • Power Steering Pressure (PSP) switch circuit did not change states KOER
      • 521
        • Power Steering Pressure (PSP) switch circuit did not change states KOER
      • 522
        • Vehicle not in PARK or NEUTRAL during KOEO/PNP switch circuit open
      • 524
        • Low speed fuel pump circuit open-battery to PCM
      • 525
        • Indicates vehicle in gear/A/C on
      • 527
        • Park/Neutral Position (PNP) switch circuit open-A/C on KOEO
      • 528
        • Clutch Pedal Position (CPP) switch circuit failure
      • 529
        • Data Communication Link (DCL) or PCM circuit failure
      • 532
        • Cluster Control Assembly (CCA) circuit failure
      • 533
        • Data Communication Link (DCL) or Electronic Instrument Cluster (EIC) circuit failure
      • 536
        • Brake On/Off (B00) circuit failure/not actuated during KOER
      • 538
        • Insufficient RPM change during KOER dynamic response test
        • Invalid cylinder balance test due to throttle movement during test (SFI only)
        • Invalid cylinder balance test dure to CID circuit failure
      • 539
        • A/C on/Defrost on during Self-Test
      • 542
        • Fuel Pump secondary circuit failure
      • 543
        • Fuel Pump secondary circuit failure
      • 551
        • Idle Air Control (IAC) circuit failure KOEO
      • 552
        • Secondary Air Injection Bypass (AIRB) circuit failure KOEO
      • 553
        • Secondary Air Injection Diverter (AIRD) circuit failure KOEO
      • 554
        • Fuel Pressure Regulator Control (FPRC) circuit failure
      • 556
        • Fuel Pump relay primary circuit failure
      • 557
        • Low speed fuel pump primary circuit failure
      • 558
        • EGR Vacuum Regulator (EVR) circuit failure KOEO
      • 559
        • Air Conditioning On (ACON) relay circuit failure KOEO
      • 563
        • High Fan Control (HFC) circuit failure KOEO
      • 564
        • Fan Control (FC) circuit failure KOEO
      • 565
        • Canister Purge (CANP) circuit failure KOEO
      • 566
        • 3-4 shift solenoid circuit failure KOEO (A4LD)
      • 567
        • Speed Control Vent (SCVNT) circuit failure (KOEO IVSC test)
      • 568
        • Speed Control Vacuum (SCVAC) circuit failure (KOEO IVSC test)
      • 569
        • Auxiliary Canister Purge (CANP2) circuit failure KOEO
      • 571
        • EGRA solenoid circuit failure KOEO
      • 572
        • EGRV solenoid circuit failure KOEO
      • 578
        • A/C pressure sensor circuit shorted
      • 579
        • Insufficient A/C pressure change
      • 581
        • Power to Fan circuit over current
      • 582
        • Fan circuit open
      • 583
        • Power to Fuel pump over current
      • 584
        • VCRM Power ground circuit open (VCRM Pin 1)
      • 585
        • Power to A/C clutch over current
      • 586
        • A/C clutch circuit open
      • 587
        • Variable Control Relay Module (VCRM) communication failure
      • 617
        • 1-2 shift error
      • 618
        • 2-3 shift error
      • 619
        • 3-4 shift error
      • 621
        • Shift Solenoid 1 (SS1) circuit failure KOEO
      • 622
        • Shift Solenoid 2 (SS2) circuit failure KOEO
      • 623
        • Transmission Control Indicator Light (TCIL) circuit failure
      • 624
        • Electronic Pressure Control (EPC) circuit failure
      • 625
        • Electronic Pressure Control (EPC) driver open in PCM
      • 626
        • Coast Clutch Solenoid (CCS) circuit failure KOEO
      • 627
        • Torque Converter Clutch (TCC) solenoid circuit failure
      • 628
        • Excessive converter clutch slippage
      • 629
        • Torque Converter Clutch (TCC) solenoid circuit failure
      • 631
        • Transmission Control Indicator Lamp (TCIL) circuit failure KOEO
      • 632
        • Transmission Control Switch (TCS) circuit did not change states during KOEO
      • 633
        • 4X4L switch closed during KOEO
      • 634
        • Transmission Range (TR) voltage higher or lower than expected
      • 636
        • Transmission Fluid Temp (TFT) higher or lower than expected
      • 637
        • Transmission Fluid Temp (TFT) sensor circuit above maximum voltage/-40F (-40C) indicated/circuit open
      • 638
        • Transmission Fluid Temp (TFT) sensor circuit below minimum voltage/290 degrees F (143C) indicated/circuit shorted
      • 639
        • Insufficient input from Transmission Speed Sensor (TSS)
      • 641
        • Shift Solenoid 3 (SS3) circuit failure
      • 643
        • Torque Converter Clutch (TCC) circuit failure
      • 645
        • Incorrect gear ratio obtained for first gear
      • 646
        • Incorrect gear ratio obtained for second gear
      • 647
        • Incorrect gear ratio obtained for third gear
      • 648
        • Incorrect gear ratio obtained for fourth gear
      • 649
        • Electronic Pressure Control (EPC) higher or lower than expected
      • 651
        • Electronic Pressure Control (EPC) circuit failure
      • 652
        • Torque Converter Clutch (TCC) solenoid circuit failure
      • 653
        • Transmission Control Switch (TCS) did not change states during KOER
      • 654
        • Transmission Range (TR) sensor not indicating PARK during KOER
      • 656
        • Torque Converter Clutch continuous slip error
      • 657
        • Transmission over temperature condition occurred
      • 659
        • High vehicle speed in park indicated
      • 667
        • Transmission Range sensor circuit voltage below minimum voltage
      • 668
        • Transmission Range circuit voltage above maximum voltage
      • 675
        • Transmission Range sensor circuit voltage out of range
      • 998
        • Hard fault present *****FMEM MODE*****