Mazda 626 MX-6 Workshop Manual page 237

Code No. 02 (Ne signal)
Is there continuity between distributor and engine
control unit?
Distributor
A
B
Is same Code No. present after performing after­
repair procedure? (Refer to page 4B—11)
Are control unit 1T and 1Q terminal voltages OK?
YES
Control unit
1T
1Q
YES
YES
YES
TROUBLESHOOTING WITH SST 4 B
PC: Engine control unit malfunction
PC: Possible Cause
86U04B-008
4B-17