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B3685 Pontiac Code - Movable Roof Header Latched Left Sensor Circuit

- Code Popularity: 541 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B3685 Pontiac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Movable Roof Header Latched Left Sensor
  • Movable Roof Header Latched Left Sensor harness is open or shorted
  • Movable Roof Header Latched Left Sensor circuit poor electrical connection
  • Faulty Folding Top Control (FTC) Module
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How to Fix the DTC B3685 Pontiac?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B3685 58 Movable Roof Header Latched Left Sensor Circuit incorrect reaction after event
B3685 59 Movable Roof Header Latched Left Sensor Circuit circuit/component protection time out

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3685 Pontiac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B3685 Pontiac Description

S18 is part of the Folding Top Front Location Pin Guide - Left assembly. The Folding Top Control (FTC) Module uses S18 to determine if the headliner is latched at the left front of the header. S18 is closed and pulls the signal circuit low when the top is latched. The Diagnostic Trouble Code (DTC) sets if an open or a short to ground are present on the signal circuit of S18.

OBDII Code B3685 Pontiac - Movable Roof Header Latched Left Sensor Circuit - AutoCodes.com
B3685 Pontiac Code - Movable Roof Header Latched Left Sensor Circuit

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