Hi, I have a 2011 Acura TSX 2.4 liter 4 cyclinder. When I put the key in the ignition in the morning it won't start unless I try turning the key almost 10 times. I replaced the battery 2 months ago too. And this only happens in the morning. Do you know what the issue can be?
Do you know what the issue can be?
It can be many things. You need to clarify whether "it won't start" means the starter won't crank, or that the engine cranks but doesn't fire.
@chucktobias The starter won't crank.
The first thing that comes to mind based on your description is the ignition switch itself is starting to go bad. A more through description would helpful.
@justin-shepherd When I turn the key only the dashboard and infotainment start, not the engine. Engine only starts after turning the key about 8 or 9 times.
When I turn the key only the dashboard and infotainment start, not the engine. Engine only starts after turning the key about 8 or 9 times.
Test the starter position of the ignition switch.
The starter won't crank.
In that case, to test if the ignition switch works, disconnect the starter from the harness, and test it with a multimeter that measures continuity. Hold the the key in the start position and measure continuity. Put one prong in the harness and the other on any metal on the car body. It should beep if it has continuity. If it beeps, the starter or the starter solenoid is bad.
In that case, to test if the ignition switch works, disconnect the starter from the harness, and test it with a multimeter that measures continuity.
It may not be that simple. That vehicle is new enough that the ignition switch probably tells a computer module to run the starter via a relay. There's probably also an electronic key and reader that's part of a security system, so lots of stuff potentially between the ignition switch and the starter.
I would first use a test light or voltmeter connected to the starter's solenoid when the ignition key is turned to the starter position. If there is voltage present then the starter is at fault. (Could be just the solenoid of course but these days starter and solenoid are usually swapped out as a unit.)
If no trigger voltage is being sent to the solenoid then it would be necessary to obtain a wiring diagram and start testing the switch and wiring directly. If that's OK then a bidirectional scan tool would be needed to troubleshoot the electronics.
@chucktobias I was assuming based on the result of the continuity test, if it doesn't beep, then that would mean a relay or a computer module is bad. You could also just use a multimeter, set it to Volts DC and attempt to start the car. The multimeter should read battery voltage if the relay and computer module are both good.
I would bet you need a new starter..
sounds a lot like worn out ignition switch
