Power Transistor (240SX Only, All Others Refer To Engine Performance, G-Test W/Codes, Code 21).
The ignition signal from the E.C.U. is amplified by the power transistor, which turns the ignition coil primary circuit on and off, inducing the proper high voltage in the secondary circuit.
Check the continuity between the Power Transistor terminals, refer to the POWER TRANSISTOR CONTINUITY for test information.
NOTE:
This information has been updated according to TS89-102.
POWER TRANSISTOR CONTINUITY
| Terminal No. (1) | Tester Polarity | Continuity | ||
|---|---|---|---|---|
| a | POS. | N/A | ||
| b | NEG. | YES | ||
| a | NEG. | N/A | ||
| b | POS. | NO | ||
| a | POS. | N/A | ||
| c | NEG. | YES | ||
| a | NEG. | N/A | ||
| c | POS. | NO | ||
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