INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER PUMP ASSEMBLY
(a) Connect the positive (+) lead from the battery to the red cable of the pump, and the negative (-) lead to the black cable.
(b) Check the brake booster pump operation.
OK:
Operation sound is heard.
Removal
ReassemblyData List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals ...
Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to
detect with the Techstream when the ECM is in check mode. In check mode, the ECM
uses 1 trip detection logic, which is more sensitive to malfunctions than normal
mode (default) ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the causes of the problem symptom.
The potential causes of the symptoms are listed in order of probability
in the "Suspected Area" column of the table. Check each symptom by checking
the suspected area ...