Retrieving Flash Codes Using "D4" Light
WARNING: This page is about a different car, the 1998 Honda Odyssey, 1998 Honda Accord, and 1998 Acura 2.3CL. However, it is still accessible from the selected car via links, so may be relevant.
- If a Flash Code is present, "D4" light on A/T gear position indicator will flash when ignition is turned on for most DTCs. To retrieve Flash Code, turn ignition off.
- Install a jumper wire or service tool between service check connector electrical terminals. Service check connector is a 2-pin electrical connector located under passenger's side of instrument panel on 2.3CL and Odyssey or under left side of instrument panel on Accord. See Figure .
- Turn ignition on. Flash Codes will be displayed by short and long flashes of "D4" light on A/T gear position indicator. If the Malfunction Indicator Light (MIL) is also flashing, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. Repair MIL light codes first.
- A short flash indicates a single digit Flash Code. A long flash equals 10 short flashes. For example, if "D4" light flashes once, this is a Flash Code No. 1. If "D4" light flashes one long, then 5 short flashes, this is a Flash Code No. 15. See Fig 1 .
- Once flash code is obtained, turn ignition off. Remove jumper wire or service tool from service check connector. Determine probable cause and symptom. See DTC/FLASH CODE IDENTIFICATION table. If any other flash codes except those listed are displayed, PCM is defective. For trouble shooting of flash codes, see DIAGNOSTIC TESTS .
NOTE:
If customer describes symptoms for DTC P0725/Flash Code 11 or DTC P1706/Flash Code 6, it may be necessary to test drive vehicle to recreate the symptom and then check for trouble code with ignition still on.
DTC/FLASH CODE IDENTIFICATION
| DTC/Flash Code (1) | Probable Cause (2) | Symptom | ||||
|---|---|---|---|---|---|---|
| P0715/15 (Off) | Defective Mainshaft Speed Sensor | Transaxle Jerks Hard When Shifting | ||||
| P0720/9 (Flashes) | Defective Countershaft Speed Sensor | Lock-Up Clutch Does Not Engage | ||||
| P0730/41 (Flashes) | Defective Shift Control System | Fails To Shift, Stuck In 1st Or 4th Gears | ||||
| P0740/40 (Flashes) | Defective Lock-Up Control System | Lock-Up Clutch Does Not Engage Or Remains Engaged, Unstable Engine Idle | ||||
| P0753/7 (Flashes) | Defective Shift Control Solenoid "A" | Remains In 4th Gear, Fails To Shift | ||||
| P0758/8 (Flashes) | Defective Shift Control Solenoid "B" | Remains In 4th Gear, Fails To Shift | ||||
| P0763/22 (Flashes) | Defective Shift Control Solenoid "C" | Remains In 4th Gear, Fails To Shift | ||||
| P1705/5 (Flashes) | Defective A/T Gear Position Switch | Lock-Up Clutch Does Not Engage, Fails To Shift Other Than 2nd-3rd Gears | ||||
| P1706/6 (Off) | Defective A/T Gear Position Switch | Lock-Up Clutch Does Not Engage, Lock-Up Clutch Engages & Disengages, Fails To Shift Other Than 2nd-3rd Gears | ||||
| P1738/25 (Flashes) | Defective 2nd Clutch Pressure Switch | No Specific Symptoms | ||||
| P1739/26 (Flashes) | Defective 3rd Clutch Pressure Switch | No Specific Symptoms | ||||
| P1753/1 (Flashes) | Fault In Lock-Up Control Solenoid "A" Circuit | Lock-Up Clutch Does Not Engage Or Disengage, Unstable Engine Idle | ||||
| P1768/16 (Flashes) | Defective A/T Clutch Pressure Control Solenoid "A" | Remains In 4th Gear, Fails To Shift | ||||
| P1773/23 (Flashes) | Defective A/T Clutch Pressure Control Solenoid "B" | Remains In 4th Gear, Fails To Shift | ||||
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