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DTC B2615

id0902i7856600

DTC B2615 | Front or rear auto leveling sensors power supply system.
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DETECTION CONDITION | Warning • incorrect servicing of the auto leveling control module could result in electrical shock because the unit is integrated with the discharge headlight control module. Before servicing the auto leveling control module, always refer to "Discharge headlight service warnings." (See DISCHARGE HEADLIGHT SERVICE WARNINGS) Front auto leveling sensor or rear auto leveling sensor supply voltage (5 V), which is generated by auto leveling control module (main), is incorrect.
POSSIBLE CAUSE | • Front auto leveling sensor malfunction • Rear auto leveling sensor malfunction • Auto leveling control module malfunction • Short circuit in wiring harness between front auto leveling sensor and headlight (LH) • Short circuit in wiring harness between rear auto leveling sensor and headlight (LH) • Headlight (LH) malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT POWER SUPPLY CIRCUIT OF HEADLIGHT (LH) • Disconnect headlight (LH) connector (4-pin). • Turn the ignition switch to ON. • Measure voltage at headlight (LH) connector terminal 2A. • Is voltage approximately 5 V? | Yes | Go to next step.
No | Go to step 4.
2 | INSPECT POWER SUPPLY CIRCUIT OF FRONT AUTO LEVELING SENSOR • Turn the ignition switch to OFF and connect headlight (LH) connector (4-pin) again. • Disconnect front auto leveling sensor connector (6-pin). • Measure voltage at front auto leveling sensor connector terminal D. • Is voltage approximately 5 V? | Yes | Replace front auto leveling sensor. (See FRONT AUTO LEVELING SENSOR REMOVAL/INSTALLATION) After replacement, clear DTC and check DTC again. • If DTC is displayed again, go to next step.
No | Repair or replace wiring harness between front auto leveling sensor and headlight (LH).
3 | INSPECT POWER SUPPLY CIRCUIT OF REAR AUTO LEVELING SENSOR • Disconnect rear auto leveling sensor connector (6-pin). • Measure voltage at rear auto leveling sensor connector terminal D. • Is voltage approximately 5 V? | Yes | Replace rear auto leveling sensor. (See REAR AUTO LEVELING SENSOR REMOVAL/INSTALLATION [2WD]) (See REAR AUTO LEVELING SENSOR REMOVAL/INSTALLATION [4WD]) After replacement, clear DTC and check DTC again. • If DTC is displayed again, go to next step.
No | Repair or replace wiring harness between rear auto leveling sensor and headlight (LH).
4 | INSPECT HEADLIGHT (LH) • Disconnect auto leveling control module (main) connector (20-pin) and headlight (LH) connector (4-pin). • Is there continuity between the following connectors? - Auto leveling control module (main) connector (terminal K) and headlight (LH) connector (terminal 2A) | Yes | Go to next step.
No | Possible cause is an open circuit in headlight (LH). Replace headlight (LH). (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION)
5 | INSPECT HEADLIGHT (LH) • Disconnect auto leveling control module (main) connector (20-pin). • Is there no continuity between the following connectors? - Terminals K and E - Terminals K and D - Terminals K and L | Yes | Replace auto leveling control module. (See DISCHARGE HEADLIGHT CONTROL MODULE REMOVAL/INSTALLATION)
No | Possible cause is an open circuit in headlight (LH). Replace headlight (LH). (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION)