Operation CHARM: Car repair manuals for everyone.
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Control Module Power Supply







Battery voltage (+30 circuit)

+30 current is fed via fuse 12 to control module pin 16. The control module uses +30 current for the bus function when the ignition is in position OFF (+15).

Battery voltage (+15 circuit)
+15 current is fed via fuse B to pin 1 of the control module. The control module is activated by the +15 current.

Diagnostics





Should the power supply drop below 9 V or exceed 16 V for at least 0.5 seconds, diagnostic trouble code P0560 will be generated and the TCM will go into Limp-Home mode.