Acura TSX / Honda Accord CL. Manual — part 950
Fig. 111: Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminal No. 1
& Body Ground
13. Turn the ignition switch OFF.
14. Disconnect PCM connector C (22P).
15. Check for continuity between mainshaft speed sensor connector terminal No. 2 and body ground.
2004 Acura TSX
2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed
Is there continuity?
YES: Repair short to ground in the wire between PCM connector terminal C19 and
mainshaft speed sensor, then go to step 30 .
NO: Go to step 16.
Fig. 112: Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No.
2 & Body Ground
2004 Acura TSX
2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed
16. Check for continuity between mainshaft speed sensor connector terminal No. 3 and body ground.
Is there continuity?
YES: Go to step 17.
NO: Repair open in the wire between the mainshaft speed sensor connector and ground
(G101), then go to step 30 .
Fig. 113: Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No.
3 & Body Ground
17. Connect PCM connector C (22P).
18. Turn the ignition switch ON (II).
2004 Acura TSX
2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed
19. Measure the voltage between mainshaft speed sensor connector terminals No. 2 and No. 3.
Is there about 5 V?
YES: Go to step 20.
NO: Go to step 29 .
Fig. 114: Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminals No.
2 & No. 3
20. Connect the mainshaft speed sensor connector.
21. Measure the voltage between PCM connector terminals C19 and A8 or A9.
Is the voltage 0 V or about 5 V?
YES: Go to step 22.
NO: Replace the mainshaft speed sensor (see MAINSHAFT SPEED SENSOR
2004 Acura TSX
2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed
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