NHTSA ID Number: 10205024
Manufacturer Communication Number: TSB160059
Summary
Hazard/Turn signal/Trailer tow lighting – Built on or before 05/29/2015
FORD:
2011-2015 F-59 Commercial Stripped Chass
This article supersedes TSB 16-0014 update the warranty base part number.
ISSUE
Some 2011-2015 F-59 Commercial Stripped Chassis vehicles built on or before 5/29/2015 may experience hazard lighting, turn signal operation or trailer tow (TT) lighting that is not functioning properly. Vehicle vibrations may internally damage the relays that control the lighting circuits.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
- Is the hazard lighting, turn signal operation or TT lighting not functioning properly?
a. Yes – proceed to step 2.
b. No – this article does not apply. Refer to Workshop Manual (WSM), Section 417-01 for normal diagnostics.
- Locate the central junction box (CJB) in the lower left side of dash. Remove and discard the following relays: (Figure 1)

- A – Trailer Tow Right Turn
- B – Trailer Tow Left Turn
- C – Right Turn
- D – Left Turn
- E – Empty
- Install new 4-terminal relays in the CJB in positions A, B, C and D. (Figure 1)
| PART NAME | PART NUMBER |
| Terminal Relay Assembly (4 req) | 9L2Z-14N089-A |
5 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| FORD | F-59 | 2011-2015 |
1 Associated Document
Manufacturer Communications
TSB 16-0059
MC-10205024-9999.pdf 140.159KB
NHTSA ID Number: 10183760
Manufacturer Communication Number: 16-0059
Summary
Some 2011-2015 F-59 Commercial Stripped Chassis vehicles built on or before 5/29/2015 may experience hazard lighting, turn signal operation or trailer tow (TT) lighting that is not functioning properly. Vehicle vibrations may internally damage the relays that control the lighting circuits.
1 Associated Document
Manufacturer Communications
TSB 16-0059
MC-10183760-9999.pdf 140.159KB
- Integrated Diode: Each relay includes a built-in diode that suppresses induced voltage during switching, safeguarding your electrical components from potential damage.
- Small size/Low power consumption/High contact voltage/ High sensitivity.
- Contact Material: Ag Alloy / Contact Resistance: ≤ 100MΩ.
- Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA.
- Life Expectancy Electrical: 100,000 Operation, Life Expectancy Mechanical: 10,000,000 Operation.
- Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
- 12-volt 5-prong (SPDT) relay. Excellent water-repellent and dustproof ability, but do not use it in water
- Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors
- Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
- Nominal Coil Voltage: 12 V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Must Operate Voltage: 6~8 V DC; Must Release Voltage: 0.6~3.6 V DC; Maximum Applied Voltage: 15.6 V DC
- High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit
- Premium quality: Durable relay and harness socket with 5 wires; Made by high-grade materials to ensure superior quality and long lifespan
- Male-female slot design: Unique male-female slot design, easy to connect the relay with harness socket, clean and neat after installation
- Easy wiring: The relay sockets come with different colors for loads/accessories, simple and convenient wiring
- Package include: 5 x relay and 5 x relay socket with wires.Fit type: Universal fit
- Excellent water-repellent and dustproof ability, but do not use it in water
- Never exceed its capabilities. Try to stay 10 to 15% below the rated value
- Pay attention to the dimensions (1.4 x 1.4 x 10 inches)! For some applications, it might be too big
- 12-volt 4-prong relay. Primary leads use 12 AWG tinned copper wire. Coil leads use 16 AWG. The length of the wire is 7 inches
- For people whose relays are burning, please make sure you are making tight connections (especially on the load wires), read the specs in the item description, and ensure the operating environment meets the relay's safety requirements
- 【12V 40A PEAK CAPACITY】Rated for 12V DC systems with a 40A max peak switching current (1.8W coil power, 80Ω resistance). Always keep your continuous loads 10% to 15% below the rated value to ensure maximum electrical safety and relay longevity
- 【PREMIUM AgSnO2 CONTACTS】This 4-pin SPST automotive relay features premium Silver Tin Oxide (AgSnO2) contacts for maximum resistance to arc erosion and contact welding. Rated for a 27V DC max switching voltage, it guarantees extended operational durability and reliable switching performance under heavy loads
- 【PLEASE NOTE SIZE】Check the product dimensions carefully (2.44 x 1.77 x 1.38 inches, excluding wires) before purchasing to ensure a proper fit for your space/application
- 【14AWG TINNED COPPER】Unlike inferior aluminum wires, our premium tinned copper design offers superior conductivity and is far more corrosion-resistant than standard bare copper. Specs: 16AWG (85/86) for control, and 14AWG (30/87) for reliable standard power output
- 【WEATHER-RESISTANT】Engineered with a tight housing to protect internal contacts from moisture, dust, and debris. Ideal for under-hood installations and outdoor applications. Please note: This unit is splash-proof only; do not submerge completely in water
SEOCONTENT-START
HAZARD/TURN SIGNAL/TRAILER TOW LIGHTING – BUILT ON OR BEFORE 5/29/2015
OPERATION DESCRIPTION TIME 160059A 2011-2015 F-59 Commercial Stripped Chassis: Verify Operation And Replace Relays Following The Service Procedure (Do Not Use With Any Other Labor Operations) 0.3 Hr. WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool. DEALER CODING BASIC PART NO. CONDITION CODE 14A411 42
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SEOCONTENT-END
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