Jeep Wagoneer Back Up Light Switch Guide: 1973-1980
Fixing your reverse lights is a critical safety repair, and it's easier than you think.
- The part is different for automatic vs. manual transmissions; confirm which you have before ordering.
- For automatics, the function is part of the Neutral Safety Switch (NSS), which can also cause starting issues.
- Always check fuses, bulbs, and grounds before replacing the switch, as these are common failure points.
- Both Crown Automotive and Standard Ignition are reputable aftermarket brands for this part.
Is Your Wagoneer's Back Up Light Switch Failing?
A bad back up light switch on these classic Wagoneers (SJ platform) is a common issue. The most obvious sign is that your reverse lights don't come on when you shift into reverse. This is not just an inconvenience; it's a major safety hazard for you and other drivers, and it will cause you to fail a vehicle safety inspection. In rare cases, the switch can fail in the 'on' position, leaving your reverse lights on all the time.
First, Check The Easy Stuff
Before you spend money on a new switch, always check the simple things first. On a vehicle this age, problems are often simple. Check the fuse for the backup lamps and make sure the bulbs themselves haven't burned out. Also, inspect the wiring and sockets for corrosion or bad grounds, which are very common problems.
Automatic vs. Manual: A Critical Difference
The part you need depends entirely on your transmission. Ordering the wrong one is the most common mistake.
- Automatic Transmission: You don't have a separate back up light switch. The function is part of the Neutral Safety Switch (NSS). For 1976-1979 models, this switch is often located on the steering column, under the dash near the pedals. A failure here can also cause a no-start condition or allow the vehicle to start in gear.
- Manual Transmission (T-15, T-18, etc.): You have a dedicated back up light switch. It's a small, plunger-style switch screwed directly into the side of the transmission case. Accessing it is often easiest by removing the transmission cover plate from inside the cab.
Choosing the Right Aftermarket Switch
For a vehicle from this era, new OEM parts are essentially non-existent. The aftermarket is your only realistic source for a new switch. Luckily, the available brands are well-known.
- Crown Automotive: Crown is a brand that specializes in Jeep replacement parts. Their switches are designed to be direct, OE-style replacements and are a very popular choice in the Jeep community. They are generally considered a reliable, budget-friendly option.
- Standard Ignition (SMP): Standard is a major aftermarket manufacturer with a strong reputation for quality control and performance testing across all their electrical components. Mechanics often trust Standard parts for their reliability, making them a solid, dependable choice that meets or exceeds original specifications.
Pro Tip: While both brands are good choices, many professional mechanics lean towards Standard Ignition for electrical parts due to their reputation for rigorous testing. However, for a simple switch like this, a Crown part is also a perfectly acceptable and widely used solution.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Crown, Standard Ignition) | $26 - $47 |
| New OEM (NOS) | Not Generally Available |
| Shop Labor | $60 - $150 |
Frequently Asked Questions
Where is the back up light switch located?
For manual transmissions, it's screwed into the driver's side of the transmission housing. For many automatic models from 1976-1979, it's part of the Neutral Safety Switch located on the steering column under the dashboard.
Can I replace the switch myself?
Yes, this is a great DIY job. For manual transmissions, you'll need basic hand tools and may need to remove the interior floor panel over the transmission. The job typically takes less than an hour.
My new switch is installed but the lights still don't work. What now?
First, re-check your fuses and bulbs. Then, check the wiring connector for power. It's very common for the wiring itself or the bulb sockets to be corroded or have a bad ground connection. You can use a multimeter to trace power from the fuse to the switch and from the switch to the lights to find the break in the circuit.
Do I need a special tool to replace it?
No, you typically just need a standard wrench or socket to fit the switch. No special tools are required. Accessing the switch is the biggest part of the job.
Technical Specifications
OEM Part Numbers: 5350061 J5752107
Varies by transmission. Manual transmission switches are typically plunger-activated and screw into the transmission case. Automatic transmission switches are integrated into the Neutral Safety Switch, which can be column-mounted or transmission-mounted depending on the year.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.