Diagnostic Trouble Code Reference Charts
NOTE:
For diagnostic trouble code definitions, see Fig 3-Fig 1
. For reference to appropriate test procedure, see DTC REFERENCE CHART table.
DTC REFERENCE CHART
| DTC | Description | Circuit Test/Step: KOEO | Circuit Test/Step: KOER | Circuit Test/Step: CONT. |
|---|---|---|---|---|
| 111 | System Pass | Pass | Pass | Pass |
| 112 | Intake Air Temp Sensor Circuit Low Input | DA20 | - | DA90 |
| 113 | Intake Air Temp Sensor Circuit High Input | DA10 | - | DA90 |
| 114 | Intake Air Temp Higher Or Lower Than Expected | DA1 | DA1 | - |
| 116 | Engine Coolant Temp Higher Or Lower Than Expected | DA1 | DA1 | - |
| 117 | Engine Coolant Temp Sensor Circuit Low Input | DA20 | - | DA90 |
| 118 | Engine Coolant Temp Sensor Circuit High Input | DA10 | - | DA90 |
| 121 | Closed Throttle Voltage Higher Or Lower Than Expected | DH2 | DH1 | DH1 |
| 122 | Throttle Position Sensor Circuit Low Input | DH10 | - | DH94 |
| 123 | Throttle Position Sensor Circuit High Input | DH3 | - | DH90 |
| 126 | Manifold Absolute Pressure Sensor Higher Or Lower Than Expected | DF1 | DF7 | DF90 |
| 128 | Manifold Absolute Pressure Sensor Vacuum Hose Damaged/ Disconnected | - | - | DF11 |
| 129 | Insufficient Manifold Absolute Pressure Change During Dynamic Response Test KOER | - | DF10 | - |
| 136 | System Indicates Lean | - | H1 | - |
| 137 | System Indicates Rich | - | H1 | - |
| 139 | No Heated Oxygen Sensor Switch | - | - | H1 |
| 144 | No Heated Oxygen Sensor Switch | - | - | H1 |
| 167 | Insufficient Throttle Position Change During Dynamic Response Test KOER | - | DH20 | - |
| 171 | Fuel System At Adaptive Limits | - | - | H1 |
| 172 | System Indicates Lean | - | H1 | H1 |
| 173 | System Indicates Rich | - | H1 | H1 |
| 174 | Fuel Control | - | - | H1 |
| 175 | Fuel System At Adaptive Limits | - | - | H1 |
| 176 | System Indicates Lean | - | - | H1 |
| 177 | System Indicates Rich | - | - | H1 |
| 178 | Fuel Control | - | - | H1 |
| 179 | Fuel System At Lean Adaptive Limit At Part Throttle, System Rich | - | - | HA1 |
| 181 | Fuel System At Rich Adaptive Limit At Part Throttle, System Lean | - | - | HA1 |
| 188 | Fuel System At Lean Adaptive Limit At Part Throttle, System Rich | - | - | HA1 |
| 189 | Fuel System At Rich Adaptive Limit At Part Throttle, System Lean | - | - | HA1 |
| 194 | Fuel Control | - | - | H5 |
| 195 | Fuel Control | - | - | H5 |
| 211 | Profile Ignition Pickup Circuit Failure | - | - | NA1 |
| 212 | Loss Of Ignition Diagnostic Monitor Input To PCM/SPOUT Circuit Grounded | - | - | NA2 |
| 213 | SPOUT Circuit Open | - | PA1 | - |
| 311 | Secondary Air Injection System Inoperative During KOER | - | KC1 | - |
| 312 | Secondary Air Injection Misdirected During KOER | - | KC1 | - |
| 313 | Secondary Air Injection Not Bypassed During KOER | - | KC1 | - |
| 314 | Secondary Air Injection System Inoperative During KOER | - | KC1 | - |
| 327 | Exhaust Gas Recirculation Valve Position Sensor Circuit Below Minimum Voltage | DN1 | DN1 | DN90 |
| 328 | Exhaust Gas Recirculation Valve Position Sensor Voltage Lower Than Expected In Closed Position | DN25 | DN25 | DN90 |
| 332 | Insufficient Exhaust Gas Recirculation Flow Detected | - | DN40 | DN110 |
| 334 | Exhaust Gas Recirculation Valve Position Sensor Voltage Higher Than Expected In Closed Position | DN20 | DN20 | DN115 |
| 337 | Exhaust Gas Recirculation Valve Position Sensor Circuit Above Maximum Voltage | DN5 | DN5 | DN90 |
| 338 | Engine Has Not Reached Normal Operating Temperature | - | - | DA100 |
| 339 | Engine Has Exceeded High Temperature Limit | - | - | DA101 |
| 411 | Cannot Control RPM During KEOR Low RPM Check | - | KE15 | - |
| 412 | Cannot Control RPM During KEOR High RPM Check | - | KE1 | - |
| 452 | Insufficient Input From Vehicle Speed Sensor To Powertrain Control Module (PCM) | - | - | DS1 |
| 511 | Powertrain Control Module Read Only Memory Test Failure KOEO | Replace PCM | Replace PCM | Replace PCM |
| 512 | Powertrain Control Module Keep Alive Memory Test Failure | - | - | QB1 |
| 513 | Powertrain Control Module Internal Voltage Failure (KOEO) | QD1 | QD1 | QD1 |
| 522 | Vehicle Not In PARK Or NEUTRAL During KOEO (%) | TA1 | - | - |
| 528 | Clutch Pedal Position Switch Circuit Failure | - | - | TA1 |
| 536 | Brake On/Off Circuit Failure / Not Actuated During KOER | - | FD1 | FD90 |
| 538 | Insufficient RPM Change During KOER Dynamic Response Test | - | M1 | - |
| 539 | A/C On / Defrost On During KOEO | KM1 | KM1 | - |
| 542 | Fuel Pump Circuit Open - Powertrain Control Module To Motor Ground | J10 | - | J90 |
| 543 | Fuel Pump Circuit Open - Battery To Powertrain Control Module | J20 | - | J93 |
| 552 | Secondary Air Injection Bypass Circuit Failure KOEO | KC9 | - | - |
| 553 | Secondary Air Injection Diverter Circuit Failure KOEO | KC9 | - | - |
| 556 | Fuel Pump Relay Primary Circuit Failure | J1 | - | J95 |
| 558 | Exhaust Gas Recirculation Vacuum Regulator Circuit Failure | DN10 | - | - |
| 565 | Canister Purge Circuit Failure KOEO | KD6 | - | - |
| 569 | Auxiliary Canister Purge Circuit Failure | KD6 | - | - |
| 617 | 1-2 Shift Error | - | - | TG90 |
| 618 | 2-3 Shift Error | - | - | TG90 |
| 619 | 3-4 Shift Error | - | - | TG90 |
| 621 | Shift Solenoid 1 Circuit Failure KOEO | TC1 | - | - |
| 622 | Shift Solenoid 2 Circuit Failure KOEO | TC1 | - | - |
| 623 | 4X4 Low & Transmission Control Switch | TB3 | - | - |
| 624 | Electronic Pressure Control Circuit Failure | TC10 | - | TG90 |
| 625 | Electronic Pressure Control Driver Open In Powertrain Control Module | TC10 | - | TG90 |
| 626 | Coast Clutch Solenoid Circuit Failure KOEO | TC1 | - | - |
| 627 | Transmission Solenoids | TC1 | - | - |
| 628 | Excessive Converter Clutch Slippage | - | - | TG90 |
| 629 | Torque Converter Clutch Solenoid Circuit Failure | TC1 | - | TG90 |
| 631 | Transmission Control Indicator Lamp Circuit Failure KOEO | TB3 | - | - |
| 632 | Transmission Control Switch Circuit Did Not Change States During KOER | - | TB2 | - |
| 633 | 4X4 Low Switch Closed During KOEO | TB1 | - | - |
| 634 | Transmission Range Voltage Higher Or Lower Than Expected | TD1 | - | TD1 |
| 636 | Transmission Fluid Temp Higher Or Lower Than Expected | TE1 | TE1 | - |
| 637 | Transmission Fluid Temperature Sensor Circuit Above Maximum Voltage | TE10 | - | TE90 |
| 638 | Transmission Fluid Temperature Sensor Circuit Below Minimum Voltage | TE20 | - | TE90 |
| 641 | Shift Solenoid 3 Circuit Failure KOEO | TC1 | - | - |
| 645 | Incorrect Gear Ratio After 1st Gear Commanded | - | - | TG90 |
| 646 | Incorrect Gear Ratio After 2nd Gear Commanded | - | - | TG90 |
| 647 | Incorrect Gear Ratio After 3rd Gear Commanded | - | - | TG90 |
| 648 | Incorrect Gear Ratio After 4th Gear Commanded | - | - | TG90 |
| 653 | Transmission Control Switch Circuit Did Not Change States During KOER | - | TB2 | - |
| 654 | Transmission Range Sensor Indicating Not In PARK During Self-Test | TD1 | - | - |
| 656 | Torque Converter Clutch Slippage Error | - | - | TG90 |
| 657 | Transmission Fluid Temperature Sensor | - | - | TE100 |
| 667 | Transmission Range Circuit Voltage Below Minimum Voltage | TD1 | TD1 | TG90 |
| 668 | Transmission Range Circuit Voltage Above Maximum Voltage | TD1 | TD1 | TG90 |
| 691 | 4X4 Low Switch Open Or Short Circuit | - | - | TB1 |
| 998 | Hard Fault Present - FMEM Mode | FMEM | - | - |
| No Code | No Codes/Codes Not Listed | QA1 | QA1 | QA1 |