Jaguar XJ (X350). Manual — part 1081

Left hand temperature sensor catalyst downstream - signal

E4

Left hand temperature sensor catalyst downstream - ground F3

3. Key off. 4. Disconnect the left hand temperature sensor - catalyst downstream connector, GB06. 5.

Measure the resistance between:

GB06, harness side

Battery

Pin 01

Negative terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t17.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552286t17 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB06, harness side

Battery

Pin 01

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t18.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552286t18 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM GROUND CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB06, harness side

Battery

Pin 02

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t19.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552286t19 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM SIGNAL CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the ECM connector, C101. 2. Measure the resistance between:

GB06, harness side C101, harness side

Pin 01

E4

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test G552286t20.

-> No

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any

DTCs, test the system for normal operation.

G552286t20 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM GROUND CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

GB06, harness side C101, harness side

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Pin 02

F3

Is the resistance less than 10 ohms?

-> Yes

An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other

physical damage to the harness. If no fault is found in the circuit, suspect the following

component(s): - Left hand temperature sensor - catalyst downstream connector. - Left hand

temperature sensor - catalyst downstream. - ECM connector. - ECM.

-> No

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any

DTCs, test the system for normal operation.

PINPOINT TEST G552286p5 : DIESEL
PARTICULATE FILTER (DPF)
TEMPERATURE SENSOR

G552286t21 : CHECK THE DPF TEMPERATURE SENSOR SIGNAL CIRCUIT FOR
SHORT CIRCUIT TO GROUND

1. Diesel particulate filter (DPF) temperature sensor connector, GB10

Circuit

Pin

Diesel particulate filter (DPF) temperature sensor - signal

01

Diesel particulate filter (DPF) temperature sensor - ground 02

2. Engine control module (ECM) connector, C101

Circuit

Pin

Diesel particulate filter (DPF) temperature sensor - signal

D4

Diesel particulate filter (DPF) temperature sensor - ground F3

3. Key off. 4. Disconnect the DPF temperature sensor connector, GB10. 5. Measure the resistance

between:

GB10, harness side

Battery

Pin 01

Negative terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t22.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552286t22 : CHECK THE DPF TEMPERATURE SENSOR SIGNAL CIRCUIT FOR
SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB10, harness side

Battery

Pin 01

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t23.

-> No

REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test

the system for normal operation.

G552286t23 : CHECK THE DPF TEMPERATURE SENSOR GROUND CIRCUIT
FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB10, harness side

Battery

Pin 02

Positive terminal

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