Jaguar XJ (X350). Manual — part 1179

B2373

LED #1 Circuit -

Short to Power

Forward alert switch

failure

Forward alert switch LED

to ACC module
circuit short to
power

Forward alert switch LED

to ACC module
circuit open circuit

Refer to electrical circuit diagrams, notes

and check Forward alert switch circuit for

short to power. For forward alert switch

LED tests, GO to Pinpoint Test

G532451p3.

C1920

Led #1 Circuit

Failure

Forward alert switch

failure

Forward alert switch LED

to ACC module
circuit short circuit
to GROUND

Refer to electrical circuit diagrams, notes

and check Forward alert switch circuit for

short to ground. For forward alert switch

LED tests, GO to Pinpoint Test

G532451p4.

C1935 Chime Circuit Failure

Chime module to ACC

module circuit short
to power

Chime module to ACC

module circuit open
circuit

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check chime module circuit for short to

power or open circuit For adaptive speed

control chime module circuit tests, GO to

Pinpoint Test G532451p5.

B1342 ECU Is Faulted

ACC module failure

Suspect ACC module internal fault , check

and replace as required, refer to the new

module installation note at the top of the

DTC Index

B2369

Chime OUTPUT

Request Circuit -

Short to Ground

Chime output circuit

short to GROUND

Refer to electrical circuit diagrams, notes

and check chime module circuit for short

to ground. For adaptive speed control

chime module circuit tests, GO to

Pinpoint Test G532451p6.

B2477

Module

Configuration

Failure

ACC module is not

correctly configured

Configure the ACC module. Refer to the

Jaguar approved diagnostic system.

U0235

Lost Communication

With Cruise Control

Front Distance

Range Sensor

Forward Looking Radar

(FLR) sensor

FLR sensor CAN circuit

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

(FDSM)

check CAN bus circuit for fault. For FLR

sensor CAN circuit tests, GO to Pinpoint

Test G532451p7.

U0433

Invalid Data

Received From

Cruise Control Front

Distance Range

Sensor

Forward Looking Radar

(FLR) sensor failure

INSTALL a new FLR sensor.

U2023

Fault Received From

External Node

CAN Bus /ACC module

related fault with the
ECM, TCM, DSCM, or
instrument cluster
modules

ACC module internal

CAN fault

CAN network fault

Carry out a full vehicle DTC check. Check

the ECM, TCM, DSCM, or instrument

cluster modules for stored ACC related

codes. For CAN circuit tests,

Communications Network

U2501

Missing Message

From Engine

Management

System For ACC

Speed control module - CAN

Bus circuit fault

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Check

engine management system module for

stored fault codes. Refer to electrical

circuit diagrams, notes and check CAN

Bus circuit for fault. For CAN circuit tests,

Communications Network

U2502

Missing Message

From Transmission

Control Module For

ACC

Speed control module - CAN

Bus circuit fault

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Check

transmission control module for stored

fault codes. Refer to electrical circuit

diagrams, notes and check CAN Bus

circuit for fault. For CAN circuit tests,

Communications Network

U2503

Missing Message

From Instrument

Cluster For ACC

Speed control module - CAN

Bus circuit fault

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Check

instrument cluster for stored fault codes.

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit for fault. For

CAN circuit tests,

www.

Communications Network

U2504

Missing Message

From ABS For ACC

Speed control module - CAN

Bus circuit fault

Check anti-lock brake system control

module for related stored fault codes.

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit for fault. For

CAN circuit tests,

Communications Network

U2505

Missing Message

From Smart Booster

Controller For ACC

Speed control module - CAN

Bus circuit fault

Check smart booster controller module

for related stored fault codes. Refer to

electrical circuit diagrams, notes and

check CAN Bus circuit for fault. For CAN

circuit tests,

Communications Network

U2516

CAN Bus Fault

network fault

CAN Bus (network)

circuit fault

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit for fault. For

CAN circuit tests,

Communications Network

U2520

CAN Bus Fault IC

missing

Instrument Cluster CAN

Bus circuit short to
power, open circuit,
short circuit to
ground

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit to instrument

cluster for fault. For CAN circuit tests,

Communications Network

U2521

CAN Bus Fault ABS

missing

DSC (ABS) CAN circuit

short to power, open
circuit, short circuit
to ground

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit to ABS module

for fault. For CAN circuit tests,

Communications Network

U2522

CAN Bus Fault TCM

missing

TCM CAN circuit short to

power, open circuit,
short circuit to
ground

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit to TCM

module for fault. For CAN circuit tests,

Communications Network

U2523

CAN Bus Fault ECM

missing

ECM CAN circuit short to

power, open circuit,
short circuit to
ground

Refer to electrical circuit diagrams, notes

and check CAN Bus circuit to ECM

module for fault. For CAN circuit tests,

Communications Network

P0610

Control Module

Vehicle Options

Error

ACC module not

configured

ACC configured to the

Configure the system using the

manufacturer approved diagnostic

system.

wrong model year

ACC module configured

to the wrong fuel
type

Wrong brake system

fitted

P2583

Cruise Control Front

Distance Range

Sensor - Single

Sensor or Center

FLR sensor

FLR sensor CAN circuit

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check FLR circuit fault. For FLR sensor

CAN circuit tests, GO to Pinpoint Test

G532451p7.

Pinpoint Tests

PINPOINT TEST G532451p1 :
FORWARD ALERT SWITCH CIRCUIT
TESTS

G532451t1 : CHECK THE FORWARD ALERT SWITCH FOR OPEN CIRCUIT

1. Turn the ignition switch to the OFF position. 2. Disconnect the ACC module connector IP78. 3.

Disconnect the forward alert switch connector IP50. 4. Measure the resistance between the ACC

module connector IP78, pin 20 (U) and forward alert switch connector IP50, pin 04 (U).

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 G532451t2.

G532451t2 : CHECK THE FORWARD ALERT SWITCH FOR SHORT CIRCUIT TO
B+

1. Turn the ignition switch to the ON position. 2. Measure the voltage between the ACC module

connector IP78, pin 20 (U) and GROUND.

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