Jaguar XJ (X350). Manual — part 1080

Pin 01

E3

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test G552286t10.

-> No

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

DTCs, test the system for normal operation.

G552286t10 : CHECK THE RIGHT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM GROUND CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

GB07, harness side C101, harness side

Pin 02

F4

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): - Right hand temperature sensor - catalyst downstream connector. - Right 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 G552286p3 : LEFT
HAND TEMPERATURE SENSOR -
CATALYST UPSTREAM

G552286t11 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
UPSTREAM SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND

1. Left hand temperature sensor - catalyst upstream connector, GB08

Circuit

Pin

Left hand temperature sensor catalyst upstream - signal

01

Left hand temperature sensor catalyst upstream - ground 02

2. Engine control module (ECM) connector, C101

Circuit

Pin

Left hand temperature sensor catalyst upstream - signal

A4

Left hand temperature sensor catalyst upstream - ground F3

3. Key off. 4. Disconnect the left hand temperature sensor - catalyst upstream connector, GB08. 5.

Measure the resistance between:

GB08, harness side

Battery

Pin 01

Negative terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t12.

-> No

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

the system for normal operation.

G552286t12 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
UPSTREAM SIGNAL CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB08, harness side

Battery

Pin 01

Positive terminal

Is the resistance greater than 100 Kohms?

www.

-> Yes

GO to Pinpoint Test G552286t13.

-> No

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

the system for normal operation.

G552286t13 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
UPSTREAM GROUND CIRCUIT FOR SHORT CIRCUIT TO POWER

1. Measure the resistance between:

GB08, harness side

Battery

Pin 02

Positive terminal

Is the resistance greater than 100 Kohms?

-> Yes

GO to Pinpoint Test G552286t14.

-> No

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

the system for normal operation.

G552286t14 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
UPSTREAM SIGNAL CIRCUIT FOR HIGH RESISTANCE

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

GB08, harness side C101, harness side

Pin 01

A4

Is the resistance less than 10 ohms?

-> Yes

GO to Pinpoint Test G552286t15.

-> No

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

DTCs, test the system for normal operation.

G552286t15 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
UPSTREAM GROUND CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

GB08, harness side C101, harness side

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 upstream connector. - Left hand

temperature sensor - catalyst upstream. - 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 G552286p4 : LEFT
HAND TEMPERATURE SENSOR -
CATALYST DOWNSTREAM

G552286t16 : CHECK THE LEFT HAND TEMPERATURE SENSOR - CATALYST
DOWNSTREAM SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND

1. Left hand temperature sensor - catalyst downstream connector, GB06

Circuit

Pin

Left hand temperature sensor catalyst downstream - signal

01

Left hand temperature sensor catalyst downstream - ground 02

2. Engine control module (ECM) connector, C101

Circuit

Pin

www.