B162C

B162C - Left Low Beam Control Circuit High

For a complete wiring diagram, refer to.

• When Monitored: Continuously.

• Set Condition: When the totally integrated power module detects an open condition when the low beam headlamp is on.






Test Step 1 - Intermittent Condition

• Turn the ignition ON.

• With the scan tool, clear all DTCs.

• Turn the headlamps ON.

• With the scan tool, read DTCs.

Does the scan tool display B162C - Left Low Beam Control Circuit High?

Yes

• Go to Test Step 2.

No

• The condition that caused this symptom is currently not present. Test 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. Repair as necessary.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Test Left Headlamp Return Signal

• Turn the ignition OFF.

• Disconnect the left low beam headlamp harness connector.

• With a test lamp connected to 12 volts, probe the left headlamp return signal circuit.

Does the test lamp illuminate brightly?

Yes

• Go to Test Step 4.

No

• Go to Test Step 3.

Test Step 3 - Left Headlamp Return Signal

• Measure the resistance of the left headlamp return signal circuit at the left low beam harness connector.

Is the resistance less than 10.0 ohms?

Yes

• Replace the inoperative bulb. .

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the left headlamp return signal circuit for an open.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 4 - Test Left Low Beam Control Circuit






• Turn the ignition ON.

• With a 12 volt test lamp connected to ground, test the left low beam control circuit.

Does the test lamp illuminate brightly with the headlamps switch turned ON, and shut OFF with the headlamps turned OFF?

Yes

• Replace the inoperative bulb. .

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Go to Test Step 5.

Test Step 5 - Left Low Beam Control Circuit Open

• Turn the ignition OFF.

• Disconnect the TIPM harness connector.

• Measure the resistance of the left low beam control circuit between the left low beam harness connector and the TIPM harness connector.

Is the resistance less than 10.0 ohms?

Yes

• Replace the totally integrated power module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the left low beam control circuit for an open.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior