On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HORN RELAY (ENGINE ROOM JUNCTION BLOCK ASSEMBLY)
|
(a) Remove the engine room junction block assembly from the engine room
relay block (See page |
|
(b) Connect a positive (+) lead from the battery to terminal 1A-1.
(c) Connect a negative (-) lead from the battery to terminal 1F-7.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1E-3 - Battery negative |
Always |
11 to 14 V |
|
*1 |
Component without harness connected (Engine Room Junction Block Assembly) |
If the result is not as specified, replace the engine room junction block assembly.
Horn System
Lighting (ext)Selecting trailer ball
Use the correct trailer ball for your application.
1. Trailer ball load rating
Matches or exceeds the gross trailer weight rating of the trailer.
2. Ball diameter
Matches the size of the trailer coupler. Most couplers are stamped with the required
trai ...
Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal mode to check mode or vice versa,
all DTCs and freeze frame data recorded in normal mode are cleared. Before changing
modes, always check and make a note of DTCs and freeze frame ...
Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the 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 malfuncti ...