B230B

B230B-REAR WIPER SWITCH INPUT CIRCUIT HIGH (SCM)

WHEN MONITORED
With the ignition on.

SET CONDITION
When the Steering Control Module detects a short/HIGH 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: B230B-REAR WIPER SWITCH INPUT CIRCUIT HIGH (SCM)?

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. WIPER 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 4 and 5. Move the switch into each position while measuring.
OFF = 1045 ohms
INTERMITTENT = 382 ohms
WIPE = 174 ohms
WASH = 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