P1690 BMW Code - Malfunction Indicator Lamp Circuit Malfunction
Quick Answer
P1690 BMW indicates Malfunction Indicator Lamp Circuit Malfunction. Common causes include Faulty Malfunction Indicator Lamp (MIL), Malfunction Indicator Lamp (MIL) harness is open or shorted, Malfunction Indicator Lamp (MIL) circuit poor electrical connection. 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
- P1690 BMW indicates Malfunction Indicator Lamp Circuit Malfunction.
- Common causes
- Common causes include Faulty Malfunction Indicator Lamp (MIL), Malfunction Indicator Lamp (MIL) harness is open or shorted, Malfunction Indicator Lamp (MIL) circuit poor electrical connection.
- 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.
Code P1690 BMW Description
What are the Possible Causes of the DTC P1690 BMW?
- Faulty Malfunction Indicator Lamp (MIL)
- Malfunction Indicator Lamp (MIL) harness is open or shorted
- Malfunction Indicator Lamp (MIL) circuit poor electrical connection
How to Fix the DTC P1690 BMW?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1690 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1690 BMW Code
What does the OBDII code P1690 mean on a BMW?
1. Code P1690 indicates a malfunction in the Malfunction Indicator Lamp (MIL) circuit, which may prevent the check engine light from operating properly. 2.
What are the common symptoms of code P1690 on a BMW?
Symptoms include the check engine light not illuminating when expected, potential drivability issues, or stored fault codes that cannot be easily diagnosed due to the MIL circuit malfunction. 3.
What causes the P1690 code to appear on a BMW?
Common causes include a blown MIL bulb, faulty wiring or connections in the MIL circuit, a defective engine control module (ECM), or issues with the instrument cluster. 4.
Can a blown check engine light bulb trigger the P1690 code on a BMW?
Yes, a blown bulb can cause the P1690 code, as it interrupts the proper operation of the MIL circuit. 5.
How do you diagnose the P1690 code on a BMW?
Diagnosis involves checking the MIL bulb, inspecting the wiring and connectors in the MIL circuit, testing the instrument cluster, and scanning for related fault codes. 6.
Is it safe to drive a BMW with the P1690 code?
It may be safe to drive, but the inability to rely on the MIL can prevent timely detection of critical engine or emissions issues, potentially leading to further damage. 7.
How can you fix the P1690 code on a BMW?
Repair steps include replacing a faulty MIL bulb, repairing damaged wiring, ensuring proper connections, or replacing the instrument cluster or ECM if necessary. 8.
Can an ECM failure cause the P1690 code on a BMW?
Yes, a malfunctioning ECM can disrupt the MIL circuit and trigger the P1690 code. 9.
How much does it typically cost to fix a P1690 code on a BMW?
The cost depends on the root cause. Replacing a MIL bulb or repairing wiring may cost $50–$200, while ECM or instrument cluster replacement can cost $500–$1500 or more. 10.
Can a P1690 code clear itself on a BMW?
No, the code will not clear itself. The underlying issue must be resolved, and the code may need to be manually cleared with an OBDII scanner.
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