Adaptive cruise control (ACC) indicator (amber) does not come on
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition switch to ON (II), then wait for 10 seconds.
- Watch the following indicators in the gauge control module:
- MIL
- Brake system light
- Charging light
Do the indicators come on?
YES -Go to the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
NO -Go to step 3.
- Turn the ignition switch to LOCK (0).
- Check the No. 21 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES -Go to step 5.
NO -Check for a short in the wire between the No. 21 (7.5 A) fuse socket and the gauge control module. If OK, replace the fuse.
- Disconnect gauge control module connector A (12P).
- Turn the ignition switch to ON (II).
- Measure the voltage between gauge control module connector A (12P) terminal No. 7 and body ground. There should be battery voltage.Fig 1: Measuring Voltage Between Gauge Control Module Connector A (12P) Terminal No. 7 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Substitute a known-good gauge control module and recheck. If the problem goes away, replace the original gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
NO -Repair an open in the wire between the No. 21 (7.5 A) fuse in the under-dash fuse/relay box and the gauge control module. If OK, replace the under-dash fuse/relay box.