B162C

B162C-LEFT LOW BEAM CONTROL CIRCUIT HIGH

For a complete wiring diagram refer to the Wiring Information .

- When Monitored:
Continuously.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects an OPEN condition when the low beam is on.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTC's.
3. Turn the Headlamps on.
4. With the scan tool, read DTC's.

Does the scan tool display active: B162C-LEFT LOW BEAM CONTROL CIRCUIT HIGH?

Yes

- Go To 2

No

- The condition that caused this symptom is currently not present. 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. Repair as necessary.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. CHECK (L911) LEFT HEADLAMP RETURN SIGNAL
1. Turn the ignition off.
2. Disconnect the Left Low Beam Lamp harness connector.
3. With a 12-volt test light connected to 12-volts, probe the (L911) left headlamp return signal circuit.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Go To 3

3. (L911) LEFT HEADLAMP RETURN SIGNAL
1. Measure the resistance of the (L911) left headlamp return signal circuit at the Left Low Beam harness connector.

Is the resistance below 10.0 ohms?

Yes

- Replace the Inoperative bulb.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Repair the (L911) left headlamp return signal circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

4. CHECK (L43) LEFT LOW BEAM CONTROL CIRCUIT




1. Turn the ignition on.
2. With a 12-volt test light connected to ground, check the (L43) Left Low Beam Control circuit.

Does the test light 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 - VER 1. Body Verification Test

No

- Go To 5

5. (L43) LEFT LOW BEAM CONTROL CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the TIPM C3 harness connector.
3. Measure the resistance of the (L43) Left Low Beam Control circuit between the Left Low Beam harness connector and the TIPM C3 harness connector.

Is the resistance below 10.0 ohms?

Yes

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Repair the (L43) Left Low Beam Control circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test