B1358 Mercury Code - Ignition Run Circuit Short To Ground
Quick Answer
The B1358 diagnostic trouble code (DTC) for Mercury vehicles indicates an issue with the ignition run circuit shorting to ground. Common causes include Damaged wiring harness, Faulty ignition switch, Malfunctioning ignition control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1358 Mercury indicates Ignition Run Circuit Short To Ground.
- Common causes
- Common causes include Damaged wiring harness, Faulty ignition switch, Malfunctioning ignition control module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code B1358 Mercury Description
The B1358 diagnostic trouble code (DTC) for Mercury vehicles indicates an issue with the ignition run circuit shorting to ground. This means that there is an unintended electrical connection between the ignition run circuit and the vehicle's ground, causing a disruption in the normal operation of the ignition system. The ignition run circuit is responsible for providing power to essential components such as the ignition coil, fuel injectors, and other engine management systems when the vehicle is running.
Common Causes of B1358 Mercury
- Damaged wiring harness
- Faulty ignition switch
- Malfunctioning ignition control module
- Problem with the engine control unit (ECU)
- Corrosion or loose connections in the ignition system
Symptoms of B1358 Mercury
- Engine misfires or rough idling
- Difficulty starting the vehicle
- Stalling or intermittent loss of power
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix B1358 Mercury
- Begin by conducting a thorough visual inspection of the ignition system wiring harness to check for any visible damage, corrosion, or loose connections.
- Use a multimeter to test the continuity of the ignition run circuit and identify the location of the short to ground.
- If the issue is with the wiring harness, repair or replace the damaged wires as needed.
- Test the ignition switch, ignition control module, and ECU for proper functionality and replace any faulty components.
- Clear the DTC from the vehicle's memory using an OBD-II scanner and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix B1358 Mercury
The cost of repairing a B1358 ignition run circuit short to ground code can vary depending on the specific cause of the issue and the extent of the damage. In general, the repair costs for this type of problem can range from $150 to $500, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your vehicle make and model.
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Frequently Asked Questions about B1358 Mercury Code
1. What does the OBDII code B1358 mean for a Mercury vehicle?
The code B1358 indicates that the ignition run circuit has a short to ground, which is a wiring issue affecting the ignition system.
2. What are the common symptoms of the B1358 code in a Mercury?
Symptoms may include the engine not starting, stalling, malfunctioning electrical components, or a blown fuse.
3. What causes the B1358 Ignition Run Circuit Short to Ground code?
Common causes include damaged or exposed wiring, a faulty ignition switch, a shorted relay, or corroded connectors in the ignition circuit.
4. Can I drive my Mercury with the B1358 code active?
It’s not recommended, as the vehicle may stall unexpectedly or fail to start, potentially leaving you stranded.
5. How is the B1358 code diagnosed?
A technician will inspect the ignition circuit wiring, check for shorts to ground, test the ignition switch, and verify proper operation of related relays and fuses.
6. What tools are needed to fix the B1358 code on a Mercury?
Tools may include a multimeter, wiring diagrams, and basic hand tools for inspecting and repairing the ignition circuit.
7. How do I fix the B1358 code on my Mercury?
Repairs may involve replacing damaged wiring, repairing corroded connectors, or replacing a faulty ignition switch or relay.
8. How much does it cost to fix the B1358 code?
The cost depends on the exact issue, but repairs typically range from $50 to $300, including diagnostics and parts.
9. Can a blown fuse cause the B1358 code?
Yes, a blown fuse in the ignition circuit can trigger this code, but the underlying cause (such as a short to ground) must also be addressed.
10. Does clearing the B1358 code fix the problem?
No, clearing the code will only temporarily remove it. The root cause of the ignition circuit short must be repaired to resolve the issue.
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