Fish Tuning DSP5 User Manual

Using Your Fish Tuning Digital DSP5 Switch
The first section covers the functions of the switch when the ignition is on. The second section covers
configuring the switch by pressing buttons while you turn on the ignition.
The Features of Your New Digital DSP5 Switch
 Instantly change to any tune with one button press
 Lock it in any tune till the password is entered
 Always be on your chosen tune when you turn the key on. No more cold morning starts on the wrong tune!
 May be configured to start with a password required so strangers can’t easily change tunes
 Wired Valet mode on LB7 and LLY trucks
 Simulated Valet mode on LBZ and LMM trucks
 A high idle function for implementing the built-in high idle function GM put in LB7, LLY and LBZ trucks
 Supports 1-5 and 5-1 tuning so your small tune can always be on position 1 and your big tune on position 5
Document conventions
 Button presses will be shown using: 1, 2, 3, 4 or 5.
 The current display will be shown using: A, B, H, L, U, a, K, n, etc....
Default Settings
 Start locked off
 Password set to: 1, 2, 3, 4
 Password length set to four
 Valet tune set to 5
 Tune reverse feature turned off
Lock Mode
 Any time you see an L or a U displayed, the switch is locked. U means you’re in valet mode and L just means it’s
locked.
 If a U is displayed you must enter the lock code to return the switch to normal operation.
 If an L is displayed and the switch has start locked enabled, you must enter the lock code to exit
 If an L is displayed and the switch does not have start locked enabled, you may enter the password or turn off the
power to exit.
Button Combinations That Work With the Ignition On
Changing Tunes
 Press any single button to instantly switch tunes. The display will indicate the current tune.
 Press and hold any single button until the display changes to P and the switch will be locked in that tune until you
enter the lock code. This lasts even through key off/key on cycles and overrides the default start up tune. As soon
as you enter the password this will be forgotten. This mode restricts access to the valet and high idle modes. This is
called tune locked mode.
Adjusting Brightness
 Press buttons 1 and 2 together to increase brightness.
 Press buttons 4 and 5 together to decrease brightness.
 30 seconds after the last adjustment, the setting will be saved.

Fish Tuning DSP5 Specifications

General

Model	DSP5
Category	Switch
Ports	5
Port Type	RJ45
Power Supply	External

Summary

DSP5 Switch Features and Setup

Features of the DSP5 Switch

Highlights key capabilities like instant tune changes, password lock, and compatibility with specific truck models.

Default Settings

Lock Mode Operation

Describes how the switch is locked, indicated by 'L' or 'U', and how to exit lock mode.

Button Operations with Ignition On

Changing Tunes

Covers instant tune switching and the 'tune locked' mode activated by holding a button.

Advanced Switch Modes

Valet Mode

Disabling Start Locked Mode

Password and Mode Management

Setting the Start Locked Flag

Password Details

Explains password requirements, length, and behavior when locked or in valet mode.

Changing the Password

Instructions on how to set a new password and confirmation of success or failure.

Password Functionality

Advanced Adjustments and Installation

Adjusting Password Length

Restoring Factory Defaults

Installing Your Digital DSP5 Switch

Provides wiring instructions and pin-out details for connecting the switch to the ECM.