Question about 2003 Toyota ECHO
1. REMOVE GLOVE COMPARTMENT DOOR
2. REMOVE ENGINE (and ECT) ECU
(a) Disconnect the wire harness clamps.
(b) Disconnect the connectors.
(c) Remove the 2 bolts and engine (and ECT) ECU.
3. Two way flow heater models only:
REMOVE AIR DUCT (Motor cover)
(a) Disconnect the control link.
(b) Disconnect the connector clamps.
(c) Remove the screw.
(d) Release the claw and remove the air duct.
4. REMOVE BLOWER RESISTOR
(a) Disconnect the connector.
(b) Remove the 2 screws and blower resistor.
5. INSPECT BLOWER RESISTOR RESISTANCE
Tester connection Condition Specified condition
1 − 3 Constant Approx. 0.4 ω
1 − 2 Constant Approx. 1.5 ω
1 − 4 Constant Approx. 2.8 ω
If resistance is not as specified, replace the blower resistor.
6. INSTALL BLOWER RESISTOR
7. Two way flow heater models only:
INSTALL AIR DUCT
8. INSTALL ENGINE (and ECT) ECU
9. INSTALL GLOVE COMPARTMENT DOOR
Posted on Mar 09, 2009
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Posted on Jan 02, 2017
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