Jaguar XJ (X350). Manual — part 908

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 G258127t15.

G258127t15 : CHECK TP SENSOR SENSING CIRCUIT TP2 FOR SHORT TO
HIGH VOLTAGE

1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3.

Measure the voltage between PI26, pin 02 (Y) and GROUND.

Is the voltage greater than 5 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 G258127t16.

G258127t16 : CHECK TP SENSOR SENSING CIRCUIT TP2 FOR SHORT TO
GROUND

1. Measure the resistance between PI26, pin 02 (Y) and GROUND.

Is the resistance less than 10,000 ohms?

-> Yes

REPAIR the short circuit to GROUND. 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 NA V8 - AJV8/3.5L NA V8 - AJV8, VIN Range: G00442->G45703 (19.70.04) CLEAR

the DTC. TEST the system for normal operation.

PINPOINT TEST G258127p6 : DTC
P0131, P0132, P0133, P1646; RIGHT-
HAND H02S SENSING CIRCUIT

LOW/HIGH CURRENT, SLOW
RESPONSE, ECM CONTROL
MALFUNCTION

G258127t17 : CHECK THE H02S VARIABLE CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the H02S electrical connector, PI10. 3.

Disconnect the ECM electrical connector, PI01. 4. Measure the resistance between PI10, pin 03 (R)

and PI01, pin 83 (R).

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 G258127t18.

G258127t18 : CHECK THE H02S VARIABLE CIRCUIT FOR SHORT TO HIGH
VOLTAGE

1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3.

Measure the voltage between PI01, pin 83 (R) and GROUND.

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 G258127t19.

G258127t19 : CHECK THE H02S VARIABLE CIRCUIT FOR SHORT TO GROUND

1. Turn the ignition switch to the OFF position. 2. Measure the resistance between PI01, pin 83 (R)

and GROUND.

Is the resistance less than 10,000 ohms?

-> Yes

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

the DTC. TEST the system for normal operation.

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-> No

GO to Pinpoint Test G258127t20.

G258127t20 : CHECK THE H02S CONSTANT CIRCUIT FOR HIGH RESISTANCE

1. Measure the resistance between PI10, pin 04 (Y) and PI01, pin 84 (Y).

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 G258127t21.

G258127t21 : CHECK THE H02S CONSTANT CIRCUIT FOR SHORT TO HIGH
VOLTAGE

1. Measure the voltage between PI10, pin 04 (Y) and GROUND.

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 G258127t22.

G258127t22 : CHECK THE H02S CONSTANT CIRCUIT FOR SHORT TO
GROUND

1. Measure the resistance between PI10, pin 04 (Y) and GROUND.

Is the resistance less than 10,000 ohms?

-> Yes

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

the DTC. TEST the system for normal operation.

-> No

INSTALL a new H02S.

CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, contact dealer

technical support for advice on possible ECM failure.

PINPOINT TEST G258127p7 : DTC
P0031, P0032; RIGHT-HAND H02S
HEATER CONTROL CIRCUIT
HIGH/LOW CURRENT

G258127t23 : CHECK H02S HEATER POWER SUPPLY CIRCUIT

1. Disconnect the H02S electrical connector, PI10. 2. Turn the ignition switch to the ON position. 3.

Make sure the O2S heater relay is engaged. 4. Measure the voltage between PI10, pin 01 (WG) and

GROUND.

Is the voltage greater than 10 volts?

-> Yes

GO to Pinpoint Test G258127t24.

-> No

REPAIR the power supply circuit to the H02S heater. This circuit includes the HO2S heater relay, fuse

34 of the front power distribution box, and the high power protection module. For additional

information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.

G258127t24 : CHECK H02S HEATER CONTROL CIRCUIT FROM ECM FOR
HIGH RESISTANCE

1. Disconnect the battery negative terminal. 2. Disconnect the ECM electrical connector, PI01. 3.

Measure the resistance between PI01, pin 01 (RU) and PI10, pin 02 (RU). 4. Measure the resistance

between PI01, pin 02 (RU) and EM21, pin 02 (RU).

Is either 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 G258127t25.

G258127t25 : CHECK H02S HEATER CONTROL CIRCUIT FROM ECM FOR
SHORT TO HIGH VOLTAGE

1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3.

Measure the voltage between PI10, pin 02 (RU) and GROUND.

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