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.

INSPECT FUSE (GAUGE 1)
1. Check the continuity in GAUGE 1 fuse.
1. NG: REPLACE FUSE
2. OK: Go to next step.

CHECK CLOCK ASSY

Check voltage.

Remove the clock assy with connector still connected.
Turn the ignition switch to ON.
Measure voltage between terminal 20 (IG) of clock assy connector and body ground.
Standard voltage: 10 - 14 V
Check voltage between terminal 4 (SW1) of clock assy connector and body ground.

Standard voltage:

STANDARD VOLTAGE

Condition	Voltage (V)
CLOCK/INFO switch is pressed	Below 1
CLOCK/INFO switch is not pressed	5
MODE/RSET switch is pressed	2.5
MODE/RSET switch is not pressed	5

Fig 1: Identifying Clock Assy Connector Terminal IG & SW1

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: CHECK AND REPLACE CLOCK ASSY
NG: Go to next step.

INSPECT STEERING PAD SWITCH

Remove the steering pad switch.

Check resistance between terminals +DP and -DP of steering pad switch connector.

Resistance:

RESISTANCE

Switch condition	Resistance (Ω)
CLOCK/INFO switch is pressed	Below 2.5
CLOCK/INFO switch is not pressed	10 kΩ or higher
MODE/RSET switch is pressed	2.1 - 2.3 kΩ
MODE/RSET switch is not pressed	10 kΩ or higher

NG: REPLACE STEERING PAD SWITCH
OK: REPAIR OR REPLACE HARNESS OR CONNECTOR