Eos (1F7) L4-2.0L Turbo (CCTA) (2009)
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Check the wiring connections for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
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Switch the ignition ON.
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Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay socket 2, (relay terminal 85) to Ground.
Specified value: Battery voltage.
If the specified value was Not obtained:
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Remove Fuse 13 in Fuse Panel B and check resistance of circuit between fuse and relay terminal socket 2.
Specified value: 1.5 ohm or less.
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If fuse is blown, locate short to ground in circuit, refer to wiring diagram.
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Repair as necessary.
If the specified value was obtained:
Checking activation
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Remove the Motronic Engine Control Module (ECM) Power Supply Relay (J271).
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Using a diode test lamp connected to Battery Positive, check the Motronic Engine Control Module (ECM) Power Supply Relay socket 1 (relay
terminal 86) while cranking the engine.
The test lamp should be ON.
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Switch the ignition OFF.
If the test lamp was ON:
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Replace the Motronic Engine Control Module (ECM) Power Supply Relay (J271): Refer to the Repair Information.
If the test lamp was not ON:
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Using a multimeter, check the Motronic Engine Control Module (ECM) Power Supply Relay socket 1 (relay terminal 86), to the Motronic Engine
Control Module (ECM) (J623) electrical harness connector T94 terminal 69 for resistance.
Specified value: 1.5 ohms Max.
If the specified value was Not obtained:
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Check the wiring connection for an open circuit, high resistance or short circuit to Battery (+).
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and ground was not present from the ECM during crank:
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Replace the Motronic Engine Control Module (ECM) (J623). Refer to the Repair Information.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09 [ CCTA, (CBRA) 2008 ].