
ADS-RR(SR)-GMS2AH-AS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2022 7
Chevrolet Cruze limited With Color sCreen (not retained) Without amP 2016
TROUBLESHOOTING TABLE
PROBLEM SOLUTION
Steering wheel controls do not work but LED on the Maestro does blink when
steering wheel buttons are pressed.
Ensure the blue 4-pin steering wheel control cable is connected between the
Maestro and the radio. The radio will use either the 3.5mm jack OR the blue/yellow
wire, not both.
Connect the 3.5mm jack from the Maestro blue 4-pin cable to the radio’s 3.5mm
port (labeled steering, remote, or wheel). If no such port exists, wire the blue/yellow
to blue/yellow (Kenwood/JVC) or to the radio’s Key 1 wire (brands not listed/other)
and secure the 3.5mm jack. It will not be used.
Verify the buttons are set up in the flash. If any button is set to “none” for “press
once”, it will do nothing. “Hold” column can be left as none and the “press once”
function will operate with one press and when holding the button.
Refer to radio’s owner’s manual to verify if the radio has this function:
• JVC/Kenwood : Steering Wheel Control (ON/OFF): choose ON
• Nakamichi : if model is listed, ensure PAC mode is on. If “other”, learn the
buttons in the radio steering wheel menu.
• Sony : Steering Wheel Control (Custom/Preset): choose Preset. If phone buttons
do not operate properly, flash the module as Pioneer – 2009 and newer with BT.
Then select “custom” instead of “preset” and learn the buttons in the radio menu.
• Other brands – radio should have a steering wheel menu to learn the buttons. You
may have to select type A/B/C/1/2/3 and try learning again if buttons are not saving.
Refer to radio manufacturer’s tech support for further advice if not learning properly.
The light on the Maestro is flashing RED ONCE. There is no firmware on the module; flash the RR module.
The radio does not turn ON or turns on and shuts off. Make sure the 2-pin connectors in the GM2 harness are connected as stated
in the diagram (step 2 & 3).
If you have a multimeter, turn the key on and check for DC voltage at the
maestro’s heavy gauge 3-pin plug (red, yellow, and black wires). The Maestro
must be plugged in to get an accurate measurement. If there is 12 volts on
the red and yellow, the Maestro is working correctly and sending power out
to turn on the radio. If no voltage on either, check the inline fuse and then
the vehicle’s fuse for the radio circuit.
If installing a floating screen type radio and it is not turning on, ensure the
screen is secured and any trim pieces on the radio have been installed fully.
Audio is very quiet or very loud. Non amplified vehicles: ensure the AMP adapter is NOT plugged in between
the white 8 pin plugs.
Amplified vehicles: ensure the AMP adapter IS plugged in between the white
8 pin plugs.
Backup camera is not working and displays a black screen on radio when in
reverse.
Ensure the 2-pin yellow plug is connected as shown on the diagram.
MAESTRO RR RESET PROCEDURE:
Turn the key to the OFF position, then disconnect all connectors from the module.
Press and hold the module’s programming button and connect all the connectors back to the module. Wait, the module’s LED will flash RED rapidly (this may
take up to 10 seconds).
Release the programming button. Wait, the LED will turn solid GREEN for 2 seconds to show the reset was successful.
TECHNICAL ASSISTANCE
Phone: 1-866-427-2999
Web: maestro.idatalink.com/support add www.12voltdata.com/forum/
IMPORTANT: To ensure proper operation, the aftermarket radio needs to have the latest firmware from the manufacturer. Please visit the radio
manufacturer’s website and look for any updates pertaining to your radio.