Operation CHARM: Car repair manuals for everyone.
Home >> Acura >> 2012 >> ZDX V6-3.7L >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> ACC Activation Indicator Does Not Come On
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

ACC Activation Indicator Does Not Come On




Adaptive Cruise Control (ACC) Symptom Troubleshooting - ACC activation indicator does not come on

ACC activation indicator does not come on

1. Do the gauge control module self-diagnostic function Testing and Inspection.

Is the gauge control module OK?

YES -

Go to step 2.

NO -

Substitute a known-good gauge control module, and recheck. If the problem goes away, replace the original gauge control module Service and Repair.

2. Test the MAIN switch Adaptive Cruise Control (ACC) Combination Switch Test.

Is the switch OK?

YES -

Go to step 3.

NO -

Replace the ACC combination switch Adaptive Cruise Control (ACC) Combination Switch/Distance Switch Removal/Installation.

3. Press the engine start/stop button to select the ON mode.

4. Measure the voltage between cable reel connector C (20P) terminal No. 7 and body ground. There should be about 5 V.





Is the voltage as specified?

YES -

Repair an open in the wire between the ACC combination switch and body ground.

NO -

Repair an open in the wire between the ACC combination switch and the gauge control module.

pro multis · About Operation CHARM