Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CLOCK ASSY
1. Turn the ignition switch to the ON position.
2. Set the time displayed on the clock assy to any time but 0:00.
3. Turn the ignition switch OFF.
4. Turn the ignition switch to the ON position.
5. Confirm that the time displayed on the clock assy shows any time but 0:00.
  OK:
  
  Time displayed on the clock assy is any time but 0:00
Fig 1: Locating Clock Assy
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The A/C amplifier and clock assy use the D.C.C fuse for backup power source. If the D.C.C fuse fails, clock assy backup power source also fails.
1. NG: CHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FAILURE FUSE (D.C.C FUSE)
2. OK: Go to Next Step.

INSPECT FUSE (ECU-B)

Remove the ECU-B fuse from the driver side J/B.

Measure the resistance according to the value(s) in ECU-B FUSE RESISTANCE .

Standard:

ECU-B FUSE RESISTANCE

Tester item	Condition	Specified condition
ECU-B fuse	Always	Below 1 Ω

NG: CHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FAILURE FUSE
OK: Go to Next Step.

INSPECT AIR CONDITIONING AMPLIFIER (B - GND)

Remove the A/C amplifier assy and disconnect the connector.

Measure the voltage according to the value(s) in AIR CONDITIONING AMPLIFIER (B - GND) VOLTAGE .

Standard:

AIR CONDITIONING AMPLIFIER (B - GND) VOLTAGE

Tester connection	Condition	Specified condition
A11-20 (B) - A11-1 (GND)	Always	10 to 14 V

Fig 2: Inspecting Air Conditioning Amplifier (B - Gnd)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 4
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE TERMINALS OF ECU )

CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BODY GROUND) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE )

Measure the resistance according to the value(s) in A/C AMPLIFIER - BODY GROUND RESISTANCE .

Standard:

A/C AMPLIFIER - BODY GROUND RESISTANCE

Tester connection	Condition	Specified condition
A11-1 (GND) - Body ground	Always	Below 1 Ω

Fig 3: Checking Harness & Connector (A/C Amplifier - Body Ground)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (D.C.C FUSE - A/C AMPLIFIER)