504 Generic diagnostic codes on file. Each shows the symptom for free — unlock the full diagnosis, repair steps, and field insights with a free account.
| Code | System | Symptom | Fix |
|---|---|---|---|
| P0608 | Computer | Speedometer Dead / ABS Lights Active | Unlock |
| P0609 | Computer | Transmission Shifts Harshly / Speedo Inop | Unlock |
| P0620 | Electrical | Battery Discharging Light On / Whining Alternator | Unlock |
| P0621 | Electrical | Battery Light Remains On / Alternator Charges | Unlock |
| P0622 | Electrical | Battery Drops Charge under Night Driving Loads | Unlock |
| P0650 | Electrical | Check Engine Light Fails to Light during Key-On Test | Unlock |
| P0654 | Computer | Tachometer Needle Dead / Stays at 0 | Unlock |
| P0655 | Computer | Engine Hot Dash Warning Lamp On Always | Unlock |
| P0656 | Computer | Fuel Gauge Needle Fixed at Empty Line | Unlock |
| P0701 | Transmission | Transmission Slips / Late Shift Points | Unlock |
| P0702 | Transmission | Transmission Locks in 3rd Gear / Default Mode | Unlock |
| P0703 | Braking | Torque Converter Clutch Fails to Unlock at Stop | Unlock |
| P0704 | Transmission | Cruise Control Inop / Engine Flare on Manual Shift | Unlock |
| P0705 | Transmission | Reverse Lights Dead / Dead Starter Crank | Unlock |
| P0706 | Transmission | Erratic Shifts / Transmission Warning Light | Unlock |
| P0707 | Transmission | Vehicle Only Starts in Neutral / Shifting Fault | Unlock |
| P0708 | Transmission | Refuses to Crank / Reverse Lights Active in Park | Unlock |
| P0709 | Transmission | Transmission Drops Out of Gear over bumps | Unlock |
| P0710 | Transmission | Late Shifts / Locked Converter | Unlock |
| P0711 | Transmission | Shifting Hard / Overheat Alert active | Unlock |
| P0712 | Transmission | Transmission Limits Shift Options / High Temp Error | Unlock |
| P0713 | Transmission | Transmission Stays in Low Temperature Warming Maps | Unlock |
| P0714 | Transmission | Transmission Temperature Gauge Bounces Erratically | Unlock |
| P0715 | Transmission | Harsh Shift Engagement / Engine Flares | Unlock |
| P0716 | Transmission | Shifting Hunting / Intermittent Slips | Unlock |
| P0717 | Transmission | Hard Clunk into Gear / Limp Mode Activated | Unlock |
| P0718 | Transmission | Transmission Shifts Erratically under High Load | Unlock |
| P0719 | Braking | Torque Converter Clutch Stays Locked up at Stops | Unlock |
| P0720 | Transmission | No Speedometer / Transmission Refuses to Upshift | Unlock |
| P0721 | Transmission | Speedometer Fluctuates / Erratic Shift Timing | Unlock |
| P0722 | Transmission | Transmission Locked in Low Gears / Limp Active | Unlock |
| P0723 | Transmission | Erratic Shifts over Bumps | Unlock |
| P0724 | Transmission | Torque Converter Clutch Refuses to Engage at Cruise | Unlock |
| P0725 | Transmission | Transmission Flunks Shifts / Limp Light On | Unlock |
| P0726 | Transmission | Harsh Delayed Shift Transitions | Unlock |
| P0727 | Transmission | Transmission Fails to Coordinate Shift Timing | Unlock |
| P0728 | Transmission | Transmission Hunts for Gears Intermittently | Unlock |
| P0730 | Transmission | Transmission Slipping / High Engine Revs | Unlock |
| P0731 | Transmission | Engine Revs up Wildly when Shifting to 1st | Unlock |
| P0732 | Transmission | Transmission Slips on 1-2 Upshift | Unlock |
| P0733 | Transmission | Transmission Slips on 2-3 Upshift | Unlock |
| P0734 | Transmission | Transmission Slippage in 4th Gear | Unlock |
| P0735 | Transmission | Transmission Slips in Top Overdrive Gear | Unlock |
| P0736 | Transmission | Engine Revs but Vehicle Refuses to Back Up | Unlock |
| P0740 | Transmission | No Fuel Economy Lock / Tachometer High Cruise | Unlock |
| P0741 | Transmission | TCC Solenoid Energizes but Slip Persists | Unlock |
| P0742 | Transmission | Engine Stalls Dead whenever Shifting to D or R | Unlock |
| P0743 | Transmission | Trans Warning Active / TCC Inoperative | Unlock |
| P0744 | Transmission | TCC Lockup Drops Out Randomly at Cruise | Unlock |
| P0745 | Transmission | Harsh Shifts / Max Line Pressure / Clunking | Unlock |
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