Jaguar XJ (X350). Manual — part 951

-> 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 G531332t147.

G531332t147 : CHECK VCT SOLENOID POWER

1. Measure the voltage between:

VCT connector PI17, harness side

Battery

Pin 02

Negative terminal

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the VCT solenoid and battery. This circuit includes splices PIS11 and

ECS72, and fuse 12 of the front power distribution box. For additional information, refer to the wiring

diagrams. CLEAR the DTC. TEST the system for normal operation.

-> No

INSTALL a new VCT solenoid.

Variable Camshaft Timing (VCT) Oil Control Solenoid (18.30.90) CLEAR the DTC. TEST the system for

normal operation.

PINPOINT TEST G531332p31 : "FLIGHT
RECORDER" DATA IS STORED IF ANY
ONE OF FIVE CONDITIONS OCCUR

G531332t148 : CHECK THE INERTIA SWITCH TO ECM CIRCUIT FOR SHORT
CIRCUIT TO POWER VOLTAGE

1. Make sure the inertia switch is not tripped. 2. Disconnect the inertia switch electrical connector,

CR02. 3. Disconnect the ECM electrical connector, EC300. 4. Measure the voltage between:

Inertia switch connector CR02, harness side ECM connector EC300, harness side

Pin 03

Pin 42

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

INSTALL a new inertia switch. CLEAR the DTC. CLEAR the flight recorder information. TEST the system

for normal operation.

PINPOINT TEST G531332p32 : EMS
CONTROL RELAY MALFUNCTION

G531332t149 : CHECK THE EMS RELAY PERMANENT SUPPLY

1. Key off. 2. Remove the EMS relay. 3. Measure the voltage between:

Relay base

Battery

Pin 01

Negative terminal

Pin 05

Are both voltages greater than 10 volts?

-> Yes

GO to Pinpoint Test G531332t150.

-> No

REPAIR the circuit between the relay base and battery. For additional information, refer to the wiring

diagrams. CLEAR the DTC. TEST the system for normal operation.

G531332t150 : CHECK THE ECM TO EMS RELAY CONTROL CIRCUIT FOR
HIGH RESISTANCE

1. Disconnect the ECM electrical connector, EC300. 2. Measure the resistance between:

Relay base ECM connector EC300, harness side

Pin 02

Pin 16

Is the resistance greater than 5 ohms?

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-> 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 G531332t151.

G531332t151 : CHECK THE EMS RELAY TO ECM SUPPLY CIRCUIT FOR HIGH
RESISTANCE

1. Measure the resistance between:

Relay base ECM connector EC300, harness side

Pin 03

Pin 04

Pin 06

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

INSTALL a new EMS relay. CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST G531332p33 :
MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR SENSING CIRCUIT
MALFUNCTION, HIGH/LOW VOLTAGE
(VEHICLES WITHOUT
SUPERCHARGER)

G531332t152 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR HIGH
RESISTANCE

1. Key off. 2. Disconnect the MAP sensor electrical connector, PI29. 3. Disconnect the ECM electrical

connector, PI300. 4. Measure the resistance between:

MAP sensor connector PI29, harness side ECM connector PI300, harness side

Pin 01

Pin 69

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 G531332t153.

G531332t153 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO POWER

1. Measure the voltage between:

MAP sensor connector PI29, harness side

Battery

Pin 01

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 G531332t154.

G531332t154 : CHECK THE MAP SENSOR SENSING CIRCUIT FOR SHORT
CIRCUIT TO GROUND

1. Measure the resistance between:

MAP sensor connector PI29, harness side

Battery

Pin 01

Negative terminal

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