HO2S Voltage Inspection
Note
1. Warm up the engine and run it at idle.
2. Disconnect the HO2S connector.
3. Connect the voltmeter test leads to the following HO2S terminals:
- (+) leadterminal A
- (-) leadterminal B
4. With the vehicle stopped, run the engine at 3,000 rpm
until the voltmeter moves between 0.5 and 0.7 V.
5. Verify that the measurement voltage changes when the engine speed increases and decreases suddenly several times.
Specification
Circuit Open/Short Inspection (Sensor)
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short. (Continuity check)
Open circuit
Front
- HO2S terminal A (harness-side) and PCM terminal 1AB (harness-side)
- HO2S terminal B (harness-side) and PCM terminal 2H (harness-side)
Rear
- HO2S terminal A (harness-side) and PCM terminal 1Y (harness-side)
- HO2S terminal B (harness-side) and PCM terminal 2H (harness-side)
Short circuit
Front and Rear
- HO2S terminal A (harness-side) and body GND
- HO2S terminal A (harness-side) and power supply
- HO2S terminal B (harness-side) and power supply
HO2S Heater Resistance Inspection
1. Disconnect the HO2S connector.
2. Measure the resistance between the HO2S terminals C and D.
Specification
Front : 3.0-3.6 ohms
Rear : 5-7 ohms
Circuit Open/Short Inspection (Heater)
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short. (Continuity check)
Open circuit
Front
- HO2S terminal C (harness-side) and ignition switch
- HO2S terminal D (harness-side) and PCM terminal 4A (harness-side)
Rear
- HO2S terminal C (harness-side) and ignition switch
- HO2S terminal D (harness-side) and PCM terminal 4D (harness-side)
Short circuit
Front and rear
- HO2S terminal C (harness-side) and body GND
- HO2S terminal D (harness-side) and power supply
- HO2S terminal D (harness-side) and body GND
Mazda 6 Service Manual: Receiving and Replying to Messages (available only with E-mail/SMS compatible
phones)
SMS (Short Message Service) messages, and E-mail received by connected devices
can be downloaded, displayed, and played (read by the system).
Additionally, replies can also be made to calls and messages in the received
messages.
Downloading messages
Up to 20 new messages can be downloaded and ...
Mazda 6 Service Manual: Front outer handle removal/installation
1. Remove the front door glass.
2. Detach the outer handle and front door latch rod.
3. For protector-equipped vehicles, refer to key cylinder
removal/installation to remove the protector.
4. Remove the bolts.
5. With the rear side of the outer handle fixed and the outer handle lever
pulle ...