5000CD Turbo (Canada) L5-2144cc 2.14L SOHC Turbo (KH) (1984)
Engine Control Module: Component Tests and General Diagnostics
Voltage Supply Test
Control unit voltage supply, checking
Work sequence
-
Remove control unit cover located in footwell on passenger side of vehicle
-
Unplug control unit connector
-
Connect voltmeter between terminals 35 and 18, then 35 and 9 of control unit connector
-
Switch ignition ON
^
Specification: approx. 12 V at each reading
-
Switch ignition OFF
-
Connect voltmeter between terminals 32 and 9
-
Switch ignition ON
-
Apply brake pedal
^
Specification: approx. 12 V
-
Switch ignition OFF
If NO voltage reading present
-
Check for open circuit in brake light wiring according to current flow diagram
If wiring OK
-
Replace brake light switch