1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,292 Posts
The TIPM is a 'smart' power management box.
Outputs are controlled by solid state drivers. No more fuses and relays.
The TIPM can store fault codes and can be addressed with a scan tool.
The dealer may be premature in his over-the-phone diagnosis and estimate. The $100 is just a diagnostic fee or minimum charge. If it goes over, they will call you.
The modules themselves are fairly trouble-free and robust. It could be a wiring harness issue (short-to-ground) that is putting the headlamp circuit into protection from overcurrent. Is the correct headlamp bulb part being used?
There may be no software update (reprogram) that fixes this.
Back to old-fashioned diagnosis: Is there continuity to ground in the headlamp power wire with the power disconnected and the bulb out of the socket? Is it both low and high beam?
This issue would have be caught while the circuit is acting up as nothing but a stored fault code may be found with the headlamp in a working state.
Outputs are controlled by solid state drivers. No more fuses and relays.
The TIPM can store fault codes and can be addressed with a scan tool.
The dealer may be premature in his over-the-phone diagnosis and estimate. The $100 is just a diagnostic fee or minimum charge. If it goes over, they will call you.
The modules themselves are fairly trouble-free and robust. It could be a wiring harness issue (short-to-ground) that is putting the headlamp circuit into protection from overcurrent. Is the correct headlamp bulb part being used?
There may be no software update (reprogram) that fixes this.
Back to old-fashioned diagnosis: Is there continuity to ground in the headlamp power wire with the power disconnected and the bulb out of the socket? Is it both low and high beam?
This issue would have be caught while the circuit is acting up as nothing but a stored fault code may be found with the headlamp in a working state.