Dodge Caliber. Manual - part 149

U1503–IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM TIPM (TIPM)

For a complete wiring diagram Refer to Section 8W

•

When Monitored:
Continuously with the ignition on.

•

Set Condition:
When the Anti-Lock Brake Module detects an incorrect CAN message from the Totally Integrated Control Mod-
ule (TIPM).

Possible Causes

TIPM CAN BUS DTCS

ANTI-LOCK BRAKE MODULE

Diagnostic Test

CHECK IF TIPM CAN BUS DTCs ARE PRESENT

With the scan tool, read TIPM DTCs.

Are there any TIPM CAN BUS DTCs present?

Yes

>> Refer to 8-ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING and diag-

nose the appropriate symptom.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

>> Replace the Anti-Lock Brakes Module in accordance with the Service Information.

Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).

BRAKES - ABS ELECTRICAL DIAGNOSTICS

5 - 297

STANDARD PROCEDURE

ABS VERIFICATION TEST

WARNING: To avoid personal injury or death, check brake capability is available before road testing.

NOTE: If the ABM (Anti-Lock Brake Module), SAS (Steering Angle Sensor), Dynamics Sensor was replaced,
it must be initialized using the scan tool. If not initialized, the ABS indicator will flash continuously with no
DTCs. To initialize the ABM and clear offsets have wheels pointing straight ahead and follow the directions
on the scan tool. The drive test requires a 90° turn. If the Dynamics Sensor was replaced, test drive the
vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 25 km/hr (6 and
15 m.p.h.).
1. Turn the ignition off.

2. Connect all previously disconnected components and connectors.

3. Verify all accessories are turned off and the battery is fully charged.

4. Verify that the ignition is on, with the scan tool, erase all Diagnostic Trouble Codes from All modules. Start the
engine and allow it to run for 2 minutes and fully operate the system that was indicating the failure.

5. Turn the ignition off and wait 5 seconds. Turn the ignition on and using the scan tool, read DTCs from all mod-
ules.

6. If any Diagnostic Trouble Codes are present, return to symptom list and trouble shoot new or recurring symptom.

NOTE: For Sensor Signal and Pump Motor faults, the ABM must sense all 4 wheels at 12 km/h (7.5 mph)
before it will extinguish the ABS indicator.

7. If there are no DTCs present after turning ignition on, road test the vehicle for at least 5 minutes. Perform several
anti-lock braking stops.

8. Again, with the scan tool read DTCs. If any DTCs are present, refer to the Table of Contents in the applicable
Section for the diagnostic test procedure and troubleshoot the new or recurring symptom.

9. If there are no Diagnostic Trouble Codes (DTCs) present, and the customer’s concern can no longer be dupli-
cated, the repair is complete.

Are any DTCs present or is the original concern still present?

Yes

>> Repair is not complete, refer to appropriate symptom.

>> Repair is complete.

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BRAKES - ABS ELECTRICAL DIAGNOSTICS

BRAKES - ABS SERVICE INFORMATION

TABLE OF CONTENTS

page

BRAKES - ABS SERVICE INFORMATION

DESCRIPTION

ANTILOCK BRAKE SYSTEM . . . . . . . . . . . . . . . . 300
ELECTRONIC VARIABLE BRAKE

PROPORTIONING . . . . . . . . . . . . . . . . . . . . . . . . 301

OPERATION

ANTILOCK BRAKE SYSTEM . . . . . . . . . . . . . . . . 301
ELECTRONIC VARIABLE BRAKE

PROPORTIONING . . . . . . . . . . . . . . . . . . . . . . . . 303

CAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
DIAGNOSIS AND TESTING

INSPECTION AND ROAD TEST . . . . . . . . . . . . . 304

STANDARD PROCEDURE

ANTILOCK BRAKE SYSTEM BLEEDING . . . . . 305

SPECIFICATIONS

ABS FASTENER TORQUE . . . . . . . . . . . . . . . . . . 306

SENSOR-DYNAMICS (ESP)

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

SENSOR-FRONT WHEEL SPEED

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

SENSOR-REAR WHEEL SPEED

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
REMOVAL

ALL-WHEEL-DRIVE . . . . . . . . . . . . . . . . . . . . . . . . 314
FRONT-WHEEL-DRIVE . . . . . . . . . . . . . . . . . . . . . 316

INSTALLATION

ALL-WHEEL-DRIVE . . . . . . . . . . . . . . . . . . . . . . . . 318
FRONT-WHEEL-DRIVE . . . . . . . . . . . . . . . . . . . . . 320

SWITCH-ESP

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

HYDRAULIC CONTROL UNIT (HCU)

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

INTEGRATED CONTROL UNIT (ICU)

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
REMOVAL

GAS ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
DIESEL ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
INSTALLATION

GAS ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
DIESEL ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

BRAKES - ABS SERVICE INFORMATION

5 - 299

BRAKES - ABS SERVICE INFORMATION

DESCRIPTION

ANTILOCK BRAKE SYSTEM

This vehicle uses an antilock brake system designated
MK25e. For this vehicle, MK25e is available with Elec-
tronic Stability Program (ESP) and All-Speed Traction
Control or without.

This antilock brake system uses components of the
base brake system, but also features the following
components:

•

Integrated Control Unit (ICU) - Hydraulic Control
Unit (HCU) (2) and Antilock Brake Module (ABM)
(1)

•

Wheel Speed Sensors (WSS) - Four sensors
(one at each wheel)

The MK25e ICU is made up of the Hydraulic Control Unit (HCU) and the Antilock Brake Module (ABM). For addi-
tional information on these components, (Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/HCU (HYDRAULIC
CONTROL UNIT) - DESCRIPTION) (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ANTILOCK
BRAKE MODULE - DESCRIPTION).

ABS

The purpose of the antilock brake system (ABS) is to prevent wheel lockup under braking conditions on virtually any
type of road surface. Antilock braking is desirable because a vehicle that is stopped without locking the wheels
retains directional stability and some steering capability. This allows the driver to retain greater control of the vehicle
during braking.

All vehicles equipped with ABS use Electronic Variable Brake Proportioning (EVBP) to balance front-to-rear braking
when the brakes are applied in the partial braking range. For more information on electronic brake distribution,
(Refer to 5 - BRAKES - ABS - DESCRIPTION).

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BRAKES - ABS SERVICE INFORMATION

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