TEST OR INSPECTION
Note position of intercom jack prior to disconnecting intercom cable to ensure proper
While talking into each crew cab headset microphone, (press push-to-talk button),
check if headset microphone can be heard through headset earphones.
If all crew cab headset microphones can be heard through headset
earphones, go to Step 17.
Disconnect non-working crew cab headset from non-working crew cab intercom jack.
Connect non-working crew cab headset into working crew cab intercom jack. While
talking into crew cab headset microphone, press push-to-talk button, and check if crew
cab headset microphone can be heard through both headset earphones.
If crew cab headset microphone cannot be heard through both headset
earphones, replace crew cab headset.