Test M: One Turn Signal/Hazard Lamp Is Inoperative/Always On

PINPOINT TEST M: ONE TURN SIGNAL/HAZARD LAMP IS INOPERATIVE/ALWAYS ON

M1-M5:

M5-M6:

M7-M9:

M9-M10:

Normal Operation
When the smart junction box (SJB) detects the multifunction switch in the LH TURN position, the SJB provides voltage through circuit CLS21 (BU/GN) to the LH front turn lamp. When the SJB detects the multifunction switch in the RH TURN position, the SJB provides voltage through circuit CLS25 (YE/VT) to the RH front turn lamp. Circuits GD123 (BK/GY) and GD120 (BK/GN) provide ground for the LH and RH front turn lamps, respectively. The rear turn lamps are controlled utilizing the rear stoplamp circuitry.

DTC B2A27 - is an on-demand DTC that sets when the SJB detects an open or short to voltage on the RH front turn lamp voltage supply circuit.

DTC B2A28 - is a continuous and on-demand DTC that sets when the SJB detects a short to ground on the RH front turn lamp voltage supply circuit.

DTC B2A29 - is an on-demand DTC that sets when the SJB detects an open or short to voltage on the LH front turn lamp voltage supply circuit.

DTC B2A2A - is a continuous and on-demand DTC that sets when the SJB detects a short to ground on the LH front turn lamp voltage supply circuit.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Joint connector
- Headlamp assembly (MKX)
- SJB