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Grounding points

Grounding points

General



There are two main types of grounding point in the car: those that are equipped with a component number, and those where the component is grounded directly on to the chassis (e.g., temperature sensors, oil pressure sensors, etc.).

This section deals with those grounding points that have a component number.

The grounding points to which a component is connected can differ depending on whether the car is a left-hand or right-hand-drive model. This can be seen in the system diagrams.

Cables are sometimes collected in a crimp connection immediately before a grounding point. These connections will be found in the list of grounding points.

The car's battery is grounded via two cables. One cable runs to grounding point G2, which is located on the side of the left-hand structural member by the connector bracket.

Depending on engine variant, the other cable goes to the left engine mounting, the secondary air injection pump bracket, the support bracket under the intake manifold or the starter motor lower retaining bolt.

The following connections between the grounding points are not are not shown on the circuit diagrams:


1. There is a redundant ground between the engine/gearbox and one of the wheel arches.

2. Grounding point G30A is connected to grounding point G31 via crimp J1, the underhood electrical centre 342 and crimp J9/12.

3. Grounding point G3 is connected to grounding point G29 via the rear electrical centre 701.

4. Grounding point G34S is connected to grounding point G43 via crimps J108 and J80

5. On 5D, a cable runs between the upper right corner of the tailgate to the side plate under the rear right side window.

6. On the V6 engine, there is an extra ground cable between the cylinder banks.


Grounding points


No. Location Illus.
G1 Engine earth; 210 mm from branching point AC compressor towards oil level sensor
G2 On the side of the left structure strut by the connector bracket B207 B284 Z19
G3 4D/CV: In luggage compartment below left-hand light cluster 5D: On rear left luggage compartment floor support 4D 5D CV
G4 On the centre tunnel behind the airbag control module
G5 Between starter motor and alternator
G7 B207 : On the engine control module upper right-hand attachment lug B284: On the right cylinder bank toward the belt circuit side Z19: On starter motor lower retaining bolt B207 B284 Z19
G7F In the centre of the front cylinder bank
G7R On the rear cylinder bank toward the gearbox side
G8 215 mm from coolant temperature sensor
G14 By the seat member under the left seat
G15 On left-hand structure strut under the battery
G25 On the left engine mounting B284 AUT: On a bracket on the front of the gearbox
G29 4D: In the luggage compartment below the right light cluster 5D: On right rear support of luggage compartment floor
G30A Front grounding point on the side plate above the left wheel housing
G30B Rear grounding point on the side plate above the left wheel housing
G31 In the engine bay on the side plate above the right wheel housing
G33P On the floor below the LH A-pillar (black tape)
G33S On the floor below the LH A-pillar (BK/GN cable)
G33T The upper grounding point by the floor below the LH A-pillar
G34P Near the floor below the right A-pillar (black tape)
G34S On the floor below the RH A-pillar (green tape and BK/GN cable)
G40 In the instrument well to the left of the knee member
G41 In the instrument well to the right of the knee member
G43 On the right of the knee member
G47A in steering wheel
G47B in steering wheel
G48 (CV) By the STC control module
G49 (4D) In the left C-pillar
G52 (5D) At shoulder height on right-hand C-pillar