Inspection Procedure

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

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSY - RADIO AND NAVIGATION ASSY)

Disconnect the connector from the radio and navigation assy R12 and combination meter assy C7.

Measure the resistance according to the value (s) in the table below.

Standard:

TERMINALS RESISTANCE

Tester connection	Condition	Specified condition
SPD - C7-36	Always	Below 1 Ω
SPD - Body ground	Always	10 k Ω or higher

Fig 1: Disconnecting Connector From Radio And Navigation Assy R12

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Disconnecting Connector From Combination Meter Assy C7

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step.

INSPECT COMBINATION METER ASSY
1. Connect the combination meter assy connector C7.
2. Measure the voltage.
  1. Adjust the shift lever to the neutral position.
  2. Jack up either one of the front wheels.
  3. Turn the ignition switch to the ON position.
  4. Measure the voltage between terminal C7-36 and body ground of combination meter assy when the front wheels are turned slowly.
  Standard: Voltage is pulsed as shown below.
  
  Fig 3: Connecting Combination Meter Assy Connector C7
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 4: Voltage Graph
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: GO TO COMBINATION METER SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )
2. OK: REPLACE RADIO AND NAVIGATION ASSY (SEE REPLACEMENT )