Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Wiper Dial Position Setting
Front wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent operation dial position 1, 2, and 3) and vehicle speed signal.
After each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.
| Wiper dial position | Intermittent operation interval | Combination switch | ||
|---|---|---|---|---|
| Intermittent operation dial position 1 | Intermittent operation dial position 2 | Intermittent operation dial position 3 | ||
| 1 | Short ↑ ↓ Long |
ON | ON | ON |
| 2 | ON | ON | OFF | |
| 3 | ON | OFF | OFF | |
| 4 | OFF | OFF | OFF | |
| 5 | OFF | OFF | ON | |
| 6 | OFF | ON | ON | |
| 7 | OFF | ON | OFF | |
Example: For wiper dial position 1
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial positions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.
- Intermittent operation dial position 1: ON (Continuity exists between combination switch output 3 and input 1).
- Intermittent operation dial position 2: ON (Continuity exists between combination switch output 5 and input 1).
- Intermittent operation dial position 3: ON (Continuity exists between combination switch output 4 and input 2).
BCM determines front wiper intermittent operation delay interval from wiper dial position and vehicle speed, and sends wiper request signal (INT) to IPDM E/R.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.