Trouble Diagnosis Introduction
CAUTION:
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using "AIR BAG" warning lamp
and/or CONSULT.
The User mode is exclusively prepared for the customer
(driver). This mode warns the driver of a system malfunction
through the
operation of the "AIR BAG" warning lamp.
The Diagnosis mode allows the
technician to locate and inspect the malfunctioning part.
The mode
applications for the "AIR BAG" warning lamp and CONSULT are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting
faster and more accurate.
In general, each customer feels differently about a
malfunction. It is important to fully understand the symptoms
or conditions
for a customer complaint.
Information From Customer
WHAT - Vehicle model<>
WHEN - Date, Frequencies<>
WHERE - Road
conditions<>
HOW - Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.
SRS Operation Check
DIAGNOSTIC PROCEDURE 1
Checking SRS Operation Using "AIR BAG" Warning Lamp-User Mode
SRS Air bag warning lamp examples
DIAGNOSTIC PROCEDURE 2
If no malfunction is detected on "SELF-DIAG [CURRENT]", but malfunction is
detected in "SRS Operation
Check" using the "AIR BAG" warning lamp, the
following cases may exist:
Trouble Diagnosis without CONSULT
DIAGNOSTIC PROCEDURE 6
Inspect SRS Malfunction Using "AIR BAG" Warning Lamp-Diagnosis Mode
NOTE:
SRS will not enter Diagnosis mode if
no malfunction is detected in User mode.
SRS is now in Diagnosis mode. Refer to SRC-56, "Trouble Diagnosis without CONSULT".
CONSULT Function (AIR BAG)
CONSULT can display each diagnostic item using the diagnostic test modes shown.
Self-Diagnosis Function (Without CONSULT)
HOW TO CHANGE SELF-DIAGNOSIS MODE
DIAGNOSTIC PROCEDURE 3
Final Check of SRS Using CONSULT - Diagnosis Mode
DIAGNOSTIC PROCEDURE 4
Check SRS Repair History
1.CONSIDER POSSIBILITY THAT SELF-DIAGNOSTIC RESULT WAS NOT ERASED AFTER REPAIR
Check repair history of the SRS.
The oil pressure warning lamp does not turn on
Description
The oil pressure warning lamp stays off when the ignition
switch is turned ON.
Diagnosis Procedure
1.CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to PCS-11,
"Diagnosis Description".
2.CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure sw ...
Heating (A/C OFF)
The air conditioner does not activate. When you
need to heat only, use this mode.
1. Press the AUTO button.
2. Turn the temperature control dial to set the
desired temperature.
The temperature of the passenger compartment
will be maintained automatically. Air
flow distribution and fa ...
U1300 AV comm circuit
Description
U1300 is indicated when malfunction occurs in communication signal of multi
AV system. Indicated simultaneously,
without fail, with the malfunction of control units connected to AV control unit
with communication line.
Determine the possible malfunction cause from the table bel ...