B1633-LEFT HI BEAM CONTROL CIRCUIT LOW

For a complete wiring diagram Refer to Section 8W.



Possible Causes
(L33) LEFT HIGH BEAM CONTROL CIRCUIT SHORT TO GROUND
LEFT HIGH BEAM BULB
TOTALLY INTEGRATED POWER MODULE




Diagnostic Test

1. INTERMITTENT CONDITION

Turn the ignition on.
With the scan tool, clear all DTC's.
Turn the High Beam Lamps on.
With the scan tool, read DTC's.

Does the scan tool display active: B1633-LEFT HIGH BEAM CONTROL CIRCUIT LOW?

Yes


No

2. LEFT HIGH BEAM BULB

Turn the ignition off.
Disconnect the Left High Beam Bulb.
Turn the ignition on.
With the scan tool, read DTC's.

Does the DTC reset?

Yes


No

3. (L33) LEFT HIGH BEAM CONTROL CIRCUIT SHORT TO GROUND



Turn the ignition off.
Disconnect the TIPM C3 harness connector.
Disconnect the Left Headlamp harness connector.
Measure the resistance between ground and the (L33) Left High Beam Control circuit.

Is the resistance above 10k ohms?

Yes


No