Inspection Procedure
HINT:
Start the engine before inspection. Check the P-IG1 relay or battery if the smart access system with pushbutton start does not start.
- INSPECT FUSE (P-IG1-1)
- Remove the P-IG1-1 fuse from the passenger side junction block.
- Measure the resistance of the fuse.
Standard resistance
RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition P-IG1-1 fuse Always Below 1 Ω NG: REPLACE FUSE
OK: Go to Next Step
- CHECK AIR CONDITIONING AMPLIFIER (IG+ VOLTAGE)
- Remove the air conditioning amplifier with its connectors still connected (see REMOVAL ).
- Turn the engine switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard voltage
VOLTAGE REFERENCE CHARTTester Connection Switch Condition Specified Condition L76-5 (IG+) - L76-1 (GND) Engine switch on (IG) 11 to 14 V L76-5 (IG+) - L76-2 (FGND) Engine switch on (IG) 11 to 14 V L76-5 (IG+) - L77-6 (RGND) Engine switch on (IG) 11 to 14 V Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
NG: Go to Next Step
- CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND)
- Disconnect the L76 and L77 air conditioning amplifier connectors.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
VOLTAGE REFERENCE CHARTTester Connection Switch Condition Specified Condition L76-5 (IG+) - Body ground Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V - Measure the resistance according to the value(s) in the table below.
Standard resistance
RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition L76-1 (GND) - Body ground Always Below 1 Ω L76-2 (FGND) - Body ground Always Below 1 Ω L77-6 (RGND) - Body ground Always Below 1 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )