DTC P1708-29: Starter Interlock Switch Circuit Or CPP Switch Circuit Malfunction (Start Stop Unit): Notes

DTC P1708:29 (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Starter interlock switch circuit or CPP switch circuit malfunction
Detection condition	Start stop unit detects that the starter interlock switch circuit is stuck on for 0.2 s or more, or the CPP switch circuit is stuck off for 0.25 s or more.
Fail-safe	Perform the control with CPP switch turned off. Perform the engine start control using the CPP switch and neutral switch without using the starter interlock switch.
Possible cause	Starter interlock switch connector or terminal malfunction Starter interlock switch malfunction Start stop unit connector or terminal malfunction Short to ground in wiring harness between start stop unit terminal 1F and starter interlock switch terminal A CPP switch connector or terminal malfunction Open circuit in wiring harness between CPP switch terminal B and body ground CPP switch malfunction Open circuit in wiring harness between start stop unit terminal 2E and CPP switch terminal A Start stop unit malfunction
Courtesy of MAZDA MOTORS CORP.