Inspection Procedure
WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE OF DATA LIST (RHEOSTAT (A/D))
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch ON and the tester ON.
- Read the DATA LIST according to the prompts displayed on the tester.
Combination meter
COMBINATION METER TEST DETAILSItem Measurement Item / Range (Display) Normal Condition Diagnostic Note RHEOSTAT (A/D) Light control rheostat volume /
Min.: 0, Max.: 255Light control rheostat Min. position: 0
Light control rheostat Max. position: 255- OK: Light brightness can be changed within the specified range.
OK: REPLACE COMBINATION METER ASSEMBLY
NG: Go TO NEXT STEP.
- INSPECT LIGHT CONTROL RHEOSTAT
- Remove the light control rheostat.
- Measure the resistance of the rheostat.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITION REFERENCETester Connection Rheostat Position Specified Condition 1 (E) - 3 (RV) Max. 8 to 12 k 1 (E) - 3 (RV) Mid. 4.7 k 1 (E) - 3 (RV) Min. 0 to 50
NG: REPLACE LIGHT CONTROL RHEOSTAT
OK: Go TO NEXT STEP.
- CHECK WIRE HARNESS (COMBINATION METER - LIGHT CONTROL RHEOSTAT)
- Disconnect the E19 meter connector.
- Disconnect the E2 rheostat connector.
- Measure the resistance of the wire harness side connectors.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITION REFERENCETester Connection Specified Condition E19-26 (SW1) - E2-7 (T) Below 1 E19-27 (SW2) - E2-3 (RV) Below 1 E19-30 (TC) - E2-5 (TC) Below 1 E19-34 (SW3) - E2-1 (E) Below 1 E19-26 (SW1) or E2-7 (T) - Body ground 8 to 12 k E19-27 (SW2) or E2-3 (RV) - Body ground 8 to 12 k (position Max.) E19-30 (TC) or E2-5 (TC) - Body ground Below 1 (Tail cancel OFF) E19-34 (SW3) or E2-1 (E) - Body ground 10 k or higher
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: REPLACE COMBINATION METER ASSEMBLY