B2588

B2588 - Parklamp Control Circuit High

Schematic:

CIRCUIT DESCRIPTION
The body control module (BCM) activates the parklamp relay when the light senses a dark condition and when circuit 74 is active. Battery voltage is supplied to the parklamp relay through the fuse circuit located in the UHFB. The BCM provides ground to circuit 1080 to activate the parklamp relay for two conditions if the headlamp switch is moved to the parklamp position and if in the ALC mode. If the parklamp relay control circuit 1080 is shorted to battery DTC B2588 will fail.

DTC PARAMETERS
^ Parklamp relay commanded On.
^ Short to battery.
^ Ignition is in RUN.
^ Condition is present for 1 seconds.
^ No telltale illumination.

DIAGNOSTIC AIDS
^ Check for poor connection at the BCM. Inspect harness connectors for backed-out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).
^ Inspect wiring harness for damage. Check for broken or chaffed insulation.
^ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

TEST

Diagnostic Chart: