2004 Jeep Wrangler electrical system problems
12 owner complaints filed with NHTSA name the electrical system on the 2004 Jeep Wrangler — 6% of all complaints for this model year.
What owners report
“Driving while dark, had smoke smell from inside cab. Driving in daylight later, and saw smoke coming from behind steering colomn. Smoke got much worse, endangered driving, and column started to get hot. Pulled over, and noticed the fog lights were still on despite the switch, and key being off…”
filed Sep 23, 2020
“Vehicle shifts hard from gear to gear for first 5 minutes or so of driving. Randomly throws 02 or cps codes. Had all parts replaced more than once. Pcm replaced twice. Two mechanics confirmed it was a faulty pcm. Shifting etc, is better when negative battery cable disconnected overnight. After a…”
filed Nov 3, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Security Module Lock Out After Entering the PIN to Unlock The Wireless Control Module (WCM)
S2208000136 · Service Bulletin/Repair Instructions · issued Jul 9, 2022Security Module Lock Out After Entering the PIN to Unlock The Wireless Control Module (WCM)
S2208000136 · Service Bulletin/Repair Instructions · issued Jul 9, 2022KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not…
9004275 · Service Bulletin/Repair Instructions · issued Jul 22, 2020KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not…
9004275 · Service Bulletin/Repair Instructions · issued Jul 22, 2020Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes P0407 ? EGR Sensor B Circuit Low, or P0408 ? EGR Sensor B Circuit High Set
S2025000005 · Service Bulletin/Repair Instructions · issued Jun 1, 2020
Electrical System problems in other Wrangler years
| Year | Reports | Share |
|---|---|---|
| 2025 Wrangler | 34 | 58% |
| 2024 Wrangler | 388 | 59% |
| 2023 Wrangler | 178 | 53% |
| 2022 Wrangler | 157 | 42% |
| 2021 Wrangler | 299 | 33% |
| 2020 Wrangler | 173 | 29% |
| 2019 Wrangler | 143 | 20% |
| 2018 Wrangler | 257 | 14% |
| 2017 Wrangler | 45 | 15% |
| 2016 Wrangler | 55 | 12% |
| 2015 Wrangler | 76 | 16% |
| 2014 Wrangler | 80 | 12% |
Other reported problem areas on the 2004 Jeep Wrangler
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.