Description of Horn Relay Operation for RAM 1500 Van V8-59L
Horn Relay: Description and Operation
SYSTEM OPERATION
The horn relay is a International Standards Organization (ISO) micro-relay. The terminal designations and functions are the same as a
conventional ISO relay. However, the micro-relay terminal orientation (or footprint) is different, current capacity is lower, and the relay case
dimensions are smaller than those of the conventional ISO relay.
The horn relay is a electromechanical device that switches battery current to the horn when the horn switch grounds the relay coil. See Horn Relay
in the Diagnosis and Testing for more information.
The horn relay is located in the junction block, which is located on the driver side end of the instrument panel in the passenger compaftment.
If a problem is encountered with a continuously sounding horn, it can usually be quickly resolved by removing the horn relay from the junction
block until further diagnosis is completed.
The horn relay cannot be repaired and, if faulty or damaged, it must be replaced.
The horn relay is a component of the Remote Key-less Entry (RKE) system only on vehicles equipped with the optional Vehicle Theft Security
System (VTSS). The horn relay is a International Standards Organization (ISO) micro-relay. The terminal designations and functions are the same
as a conventional ISO relay However, the micro-relay terminal orientation (or footprint) is different, current capacity is lower, and the relay case
dimensions are smaller than those of the conventional ISO relay
The horn relay is a electromechanical device that switches battery current to the horn when the horn switch or the Central Timer Module (CTM)
grounds the relay coil. See Horn Relay in the Diagnosis and Testing for more information.
The horn relay is located in the junction block, which is located on the driver side end of the instrument panel in the passenger compartment. If a
problem is encountered with a continuously sounding horn, it can usually be quickly resolved by removing the horn relay from the junction block
until further diagnosis is completed.
The horn relay cannot be repaired and, if faulty or damaged, it must be replaced.