TROUBLESHOOTING (After ’02)
BEFORE TROUBLESHOOTING
TROUBLESHOOTING PROCEDURE
ELECTRIC SHIFT PROGRAM (ESP)
21-8
When the operator detects an abnormality, check the following before proceeding with the diagnosis:
Check the battery voltage (minimum spec. 12.4 V) and any blown fuses.
Turn the ignition switch to ‘‘ON’’ . If the gear indicator blinks, record the number of blinks, since this indicates the type of
failure. Then troubleshoot the indicated failure. Refer to the appropriate problem code within this chapter.
If no ES system failure occurs (the indicator does not blink), perform the following:
Make sure the gear position indicator blinked codes to the user. Check the problem code as described below.
Turn the ignition switch to ‘‘OFF’’
Place the transmission in neutral.
Apply the parking brake so the vehicle does not move.
Push both Upshift switch and Downshift switch to ‘‘ON’’.
When the Electric Control Unit (ECU) detects a system abnormality, it has a built-in self-diagnostic function that stops the
Electric Shift (ES) system or resets the systems entirely (just as when the ignition switch is turned from ‘‘OFF’’ to ‘‘ON’’). If
the ECU detects an ES system failure, the ECU stops the ES system function and records a problem code. The ES system will
not operate, even after the ignition switch is turned to ‘‘OFF’’.
To reset the ES system, turn the ignition switch from ‘‘ON’’ to ‘‘OFF’’ and back to ‘‘ON’’ again. However, if the ECU still
detects a problem, it will continue to deactivate the ES system function. When this occurs, the gear position indicator will
blink a certain number of times to indicate the appropriate problem code.
The ECU is able to record system failures and outputs these as problem codes that are shown on the indicator (i. e., the ‘‘N’’
blinks a designated number of times).
While pushing both switches, turn the ignition switch to ‘‘ON’’.
Before the letter ‘‘N’’ appears on the gear position indicator (in about 2 seconds), release both the shift switches, then
push them again for more than 3 seconds.
If the switches are not released and pushed within 2 seconds, the code number will not appear.
1.
2.
1.
a)
b)
c)
d)
e)
IGNITION SWITCH
UPSHIFT SWITCH
DOWNSHIFT SWITCH
OLD PROBLEM CODE
LATEST PROBLEM CODE
ONE BLINK
ONE BLINK
1 sec
1/4 sec
1/4 sec
1 sec
2 sec
03/01/08 16:00:34 61HN400N_009