B1226

B1226-REAR WIPER INDICATOR CONTROL CIRCUIT HIGH







- When Monitored:
Ignition Run-Start transition to on.

- Set Condition:
Rear Wiper Output status LOW.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Activate the rear wiper switch.
4. Wait 30 seconds.
5. With the scan tool, read DTCs.

Is the DTC active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST Body Verification Test

2. CHECK THE (W213) REAR WIPER INDICATOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE




1. Turn the ignition off.
2. Disconnect Switch Bank harness connector.
3. Disconnect the Cluster C3 harness connector.
4. Turn the ignition on.
5. Measure the voltage on the (W213) Rear Wiper Indicator Driver circuit.

Is the voltage above 5 volts?

Yes

- Repair the (W213) Rear Wiper Indicator Driver circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST Body Verification Test

No

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST Body Verification Test