PS–30POWER STEERING – ELECTRONIC POWER STEERING SYSTEM
PS
DESCRIPTION
The power steering ECU distinguishes the ignition switch status as ON or OFF through the IG power
source circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON.
(c) Select the item "IG SUPPLY" in the DATA LIST and read
the value displayed on the intelligent tester.
Power steering ECU
OK
NG
DTC C1551/25 IG Power Supply Voltage Malfunction
DTC No. Detection Condition Trouble Area
C1551/25 IG power source circuit malfunction inside
ECU• ECU-IG1 fuse
• IG power source circuit
• Power steering ECU
1READ VALUE OF INTELLIGENT TESTER (IG POWER SUPPLY)
B128053E03
Item Item Description: Range
(Display)Inspection Condition Specified Condition
IG SUPPLY IG power supply:
Min.: 0 V
Max.: 20.1531 VIgnition switch ON 10 to 14 V
CHECK INTERMITTENT PROBLEMS
LI–26LIGHTING – LIGHTING SYSTEM
LI
DESCRIPTION
When the stop light switch is turned on, current flows to the stop lights to illuminate them.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Remove the STOP fuse from the instrument panel
junction block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1
NG
OK
Stop Light Switch Circuit
1INSPECT FUSE (STOP)
C128858E04
REPLACE FUSE
