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Code E: Air Mix Control Motor

WARNING: This page is about a different car, the 1998 Acura 3.5RL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect air mix control motor 5-pin connector. Test air mix control motor. See AIR MIX CONTROL MOTOR TESTING  . If air mix control motor is okay, go to step 3). If air mix control motor is not okay, remove air mix control motor. See AIR MIX CONTROL MOTOR R & I  .
  2. Check air mix control motor linkage and doors for smooth operation. If doors and linkage operate smoothly, replace air mix control motor. If doors and linkage DO NOT  operate smoothly, repair air mix control motor doors and linkage.
  3. Remove climate control unit. Disconnect climate control unit 8-pin and 20-pin connectors. Individually check for continuity between ground and 8-pin connector terminals No. 2 (Pink/Blue wire) and No. 3 (Gray wire), and between ground and 20-pin connector terminals No. 9 (Red/Yellow wire), No. 10 (Red wire), and No. 15 (Pink/Black wire). See Figure .
  4. If continuity does exist, repair shorted wire(s) between climate control unit and air mix control motor. If continuity does not exist, individually check for voltage between ground and terminals No. 2 (Pink/Blue wire) and No. 3 (Gray wire) of 8-pin connector, and between ground and terminals No. 9 (Red/Yellow wire), No. 10 (Red wire), and 15 (Pink/Black wire) of 20-pin connector. See Figure .
  5. If voltage exists, repair short to power in wire(s) between climate control unit and air mix control motor. If short to power exists, climate control unit must be replaced. If voltage does not exist, go to next step.
  6. Check for continuity between terminals of 8-pin climate control unit and air mix control motor 5-pin connector Gray and Pink/Blue wires, and between terminals of 20-pin climate control unit and air mix control motor 5-pin connector Red/Yellow, Red and Pink/Black wires. If continuity does not exist, repair open in wires between climate control unit and air mix control motor.
  7. If continuity does exist, check for loose wires or poor connections at climate control unit 8-pin and 20-pin connectors, and air mix control motor 5-pin connector. If connections are okay, substitute known-good climate control unit and recheck. If symptom does not exist after substituting known-good climate control unit, replace original climate control unit.
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