SurplusFan98
NAXJA Forum User
- Location
- LA
Hello all,
A while back, I bought a 98 (Mfg Date 12/97) 2wd XJ Classic that had had a fire under the hood. I bought it for cheap as a parts jeep and a learning instrument. The fire melted everything plastic: wires, connectors, vacuum lines, etc. But, the engine ran, even before I did anything to it, so I bought it mostly as a challenge to see if I could ever make it useful again.
Fast forward 6 months, and I’ve kinda been through wiring hell. I gutted the engine and transmission harness, NSS switch, everything that was burned under the hood and replaced it with wiring and vacuum/vent lines from a 98 Sport 2wd in the junkyard (Mfg date 2/98). Somehow, I had more connectors that were different than alike, but I got the jeep back where it was starting normally, reporting codes, even running well. My issues now are all in the transmission.
The fire started from the transmission and burned straight up the firewall, right where the wiring all comes together. I now know that the dipstick tube had been cut off and replaced with hose, and I'm 99% sure that the exhaust got hot and caught that little bit of hose on fire. If thats true, then my AW4 transmission is likely OK. I've just got to make it work, and I've got no real transmission experience.
Here's all the ODB2 codes I'm getting as of now, and some reasons I've compiled. There are several references to the TCM possibly being bad, but I haven't really found a way to test that yet. And yes, there's not any fluid in it right now while I'm repairing the pan/dipstick, but I doubt those are the true source of those codes:
A while back, I bought a 98 (Mfg Date 12/97) 2wd XJ Classic that had had a fire under the hood. I bought it for cheap as a parts jeep and a learning instrument. The fire melted everything plastic: wires, connectors, vacuum lines, etc. But, the engine ran, even before I did anything to it, so I bought it mostly as a challenge to see if I could ever make it useful again.
Fast forward 6 months, and I’ve kinda been through wiring hell. I gutted the engine and transmission harness, NSS switch, everything that was burned under the hood and replaced it with wiring and vacuum/vent lines from a 98 Sport 2wd in the junkyard (Mfg date 2/98). Somehow, I had more connectors that were different than alike, but I got the jeep back where it was starting normally, reporting codes, even running well. My issues now are all in the transmission.
The fire started from the transmission and burned straight up the firewall, right where the wiring all comes together. I now know that the dipstick tube had been cut off and replaced with hose, and I'm 99% sure that the exhaust got hot and caught that little bit of hose on fire. If thats true, then my AW4 transmission is likely OK. I've just got to make it work, and I've got no real transmission experience.
Here's all the ODB2 codes I'm getting as of now, and some reasons I've compiled. There are several references to the TCM possibly being bad, but I haven't really found a way to test that yet. And yes, there's not any fluid in it right now while I'm repairing the pan/dipstick, but I doubt those are the true source of those codes:
- P1694
- CCD Bus (-) circuit open between Powertrain Control Module (PCM) and Transmission Control Module (TCM)
- CCD Bus (+) circuit open between PCM and TCM
- Transmission CCD bus wiring damaged
- Faulty TCM
- P0700
- Shorted or open circuit within Transmission Control Module (TCM)
- Faulty Transmission Control Module (TCM)
- P0705
- Faulty Park/Neutral Position Switch
- Misadjusted Park/Neutral Position Switch
- Park/Neutral Position Switch harness is open or shorted
- Park/Neutral Position Switch circuit poor electrical connection
- P0715
- Defective input speed sensor
- Faulty output speed sensor
- Damaged, worn, or broken reluctor ring or shaft
- Bad transmission torque converter
- Loose, burned, or otherwise damaged wiring and/or connectors
- PCM failure or programming error
- P0743
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness is open or shorted
- Torque converter clutch solenoid valve circuit poor electrical connection
- Low transmission fluid level
- Dirty transmission fluid
- P0753
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid valve
- Shift solenoid valve harness or connectors
- Shift solenoid valve circuit is open or shorted
- P0756
- Insufficient fluid level
- Dirty or contaminated fluid
- Dirty or clogged transmission filter
- Defective transmission valve body
- Restricted hydraulic passages
- Transmission has internal failure
- Faulty shift solenoid
- Corroded or damaged connector
- Faulty or damaged wiring
- Faulty PCM
- P0758
- Low transmission fluid level
- Dirty transmission fluid
- Faulty 2-3 Shift Solenoid Valve
- 2-3 Shift Solenoid Valve harness or connectors
- P16942-3 Shift Solenoid Valve circuit is open or shorted