B2301

B2301-WIPER MODE SWITCH INPUT CIRCUIT LOW (SCM)

WHEN MONITORED
With the ignition on.

SET CONDITION
When the Steering Control Module detects a short/LOW condition.

POSSIBLE CAUSES
- Wiper multifunction switch
- Steering control module

DIAGNOSTIC TEST

1. INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all CCN DTC's.
Turn the Wipers ON then OFF.
With the Scan Tool, read the Wiper DTC's.

Q: Does the Scan Tool read: B2301-WIPER MODE SWITCH INPUT CIRCUIT LOW?

YES: Go To 2
NO: The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. MULTIFUNCTION SWITCH
Turn the ignition off.
Using the correct service procedure, remove the Wiper Multi-Function Switch.
Measure the internal resistance of the Multifunction Switch between cavities 7 and 9. Move the switch position from OFF to HIGH while measuring.
OFF = 1581 ohms
DELAY 1 = 695 ohms
DELAY 2 = 463 ohms
DELAY 3 = 323 ohms
DELAY 4 = 232 ohms
DELAY 5 = 169 ohms
LOW = 96 ohms
HIGH = 0 ohms

Q: Is the resistance in each position correct?

YES: Replace the Steering Control Module.
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Multifunction Switch.
Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test