R32 4Motion V6-3.2L (CBRA) (2008)
B+) J317 socket 87 for an open circuit or short to Ground (GND).
-
Check the electrical harness connectors for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
Checking Ground (GND)
-
Using a Multimeter, check the following wiring connections for resistance.
Motronic Engine Control
Measure to
Module (ECM) J623 electrical
harness connector terminals
or test box sockets
T121/1
Ground (GND) connection in plenum chamber left.
T121/2
Ground (GND) connection 2 in engine compartment wiring harness
Specified value: 1.5 ohms.
If any of the specified values are not obtained:
-
Check the Motronic Engine Control Module (ECM) J623 electrical harness connector terminals to the following Ground (GND) locations for an
open circuit or a short to Battery (+).
Motronic Engine Control
Measure to
Module (ECM) J623 electrical
harness connector terminals
or test box sockets
T121/1
Ground (GND) connection in plenum chamber left.
T121/2
Ground (GND) connection 2 in engine compartment wiring harness
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If no malfunctions are found in the wiring and the voltage supply was OK:
-
Perform a road test to verify any electrical repairs.
If the fault does not return:
Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
-
End of diagnosis.
If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK:
-
Replace the Engine Control Module (ECM) J623.
-
Assembly is performed in the reverse of the removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of diagnosis