Reported Problem: No Horn Honk when Keyelss Entry is used or when Remote Starter is activated
System Status: New Install on some older models of 2001-2003 Dodge RAM's and Caravans
Possible Fix: On some older model's of RAM & Chrysler/Dodge Mini Vans (not limited to these models) the default horn pulse output time setting (that's commonly between 16ms-18ms) on most brands of remote car starters, keyless entry and alarm systems, does not provide a negative pulse long enough to beep the vehicle's horn properly. The results can cause confusion during system programming changes and during normal operation.
When this is the situation, the system must be programmed for a longer horn output duration between 30ms-40ms. Most current systems have this option setting available in their installation manual and as long as you have this information the change is a step-by-step procedure commonly requiring a working remote to the system, an ignition key to the vehicle, and knowing the location of the system's programming button.
If your installing any of the Prestige E, Z and APSRS or APSSECRS series systems, this is how you would turn up the output (and just a example for other brand systems):
TECH NOTE: Each step needs to be performed within 10 seconds of each step:
1: Turn ignition ON (DO NOT start the vehicle: Press button on antenna 3X: System will sound 1X (or dash lights will flash 1X): Cycle ignition from OFF to ON again: System will sound 2X (or dash lights 2X): Leaving ignition ON:
2: Press and release the button on the system’s antenna slowly 3X: the system will respond by flashing the LED on the antenna in a 3 flash/pause/3 flash pattern. Slowly keep press & releasing the button on the antenna until the LED flashes in a 8 flash/pause/8 flash pattern:
3: While the 8 flash/pause/8 flash pattern is seen: keep press and releasing the lock button on the system’s remote (or just the button on the 1 button remotes) until the system beeps the number of times corresponding to the desired horn pulse output time setting (the second setting is usually adequate):
Response: 1 Beep = 16ms. (Default setting) 2X = 30ms. 3X = 40ms. 4X = 50ms 5X = 10ms.
3: After the desired setting change has been made turn the ignition OFF and remove keys: Response: wait, the system will sound: The system has now been set to the desired horn pulse output time setting.