Jaguar XJ (X350). Manual — part 939

PINPOINT TEST G531332p5 :
THROTTLE POSITION (TP) SENSOR
CIRCUIT TP2 HIGH/LOW VOLTAGE

G531332t14 : CHECK TP SENSOR SENSING CIRCUIT TP2 FOR HIGH
RESISTANCE

1. Key off. 2. Disconnect the TP sensor electrical connector, PI26. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

ECM connector PI300, harness side TP sensor connector PI26, harness side

Pin 67

Pin 04

Is the resistance greater than 5 ohms?

-> Yes

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

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t15.

G531332t15 : CHECK TP SENSOR SENSING CIRCUIT TP2 FOR SHORT CIRCUIT
TO POWER

1. Key on, engine off. 2. Measure the voltage between:

TP sensor connector PI26, harness side

Battery

Pin 04

Positive terminal

Is the voltage greater than 5 volts?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t16.

G531332t16 : CHECK TP SENSOR SENSING CIRCUIT TP2 FOR SHORT CIRCUIT
TO GROUND

1. Measure the resistance between:

TP sensor connector PI26, harness side

Battery

Pin 04

Negative terminal

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

INSTALL a new TP sensor.

Throttle Body - 4.2L SC V8 - AJV8, VIN Range: G45704->G99999 (19.70.04)

Throttle Body - 4.2L NA V8 - AJV8/3.5L NA V8 - AJV8, VIN Range: G45704->G99999 (19.70.04) CLEAR

the DTC. TEST the system for normal operation.

PINPOINT TEST G531332p6 : RIGHT-
HAND H02S SENSING CIRCUIT
LOW/HIGH CURRENT, SLOW
RESPONSE, ECM CONTROL
MALFUNCTION

G531332t17 : CHECK THE H02S VARIABLE CIRCUIT FOR HIGH RESISTANCE

1. Key off. 2. Disconnect the H02S electrical connector, PI10. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

ECM connector PI300, harness side HO2S connector PI10, harness side

Pin 28

Pin 04

Is the resistance greater than 5 ohms?

-> Yes

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

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DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t18.

G531332t18 : CHECK THE H02S VARIABLE CIRCUIT FOR SHORT CIRCUIT TO
POWER

1. Key on, engine off. 2. Measure the voltage between:

HO2S connector PI10, harness side

Battery

Pin 04

Negative terminal

Is the voltage greater than 3 volts?

-> Yes

REPAIR the short circuit to high voltage. For additional information, refer to the wiring diagrams.

CLEAR the DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t19.

G531332t19 : CHECK THE H02S VARIABLE CIRCUIT FOR SHORT CIRCUIT TO
GROUND

1. Key off. 2. Measure the resistance between:

HO2S connector PI10, harness side

Battery

Pin 04

Negative terminal

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t20.

G531332t20 : CHECK THE H02S CONSTANT CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between:

ECM connector PI300, harness side HO2S connector PI10, harness side

Pin 29

Pin 03

Is the resistance greater than 5 ohms?

-> Yes

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

DTC. TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t21.

G531332t21 : CHECK THE H02S CONSTANT CIRCUIT FOR SHORT CIRCUIT
TO POWER

1. Measure the voltage between:

HO2S connector PI10, harness side

Battery

Pin 03

Negative terminal

Is the voltage greater than 3 volts?

-> Yes

REPAIR the short circuit For additional information, refer to the wiring diagrams. CLEAR the DTC.

TEST the system for normal operation.

-> No

GO to Pinpoint Test G531332t22.

G531332t22 : CHECK THE H02S CONSTANT CIRCUIT FOR SHORT CIRCUIT
TO GROUND

1. Measure the resistance between:

HO2S connector PI10, harness side

Battery

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