Check 1st gear recognition switch.
Ignition "OFF" & Engine "OFF".
Disconnect 1st gear Recognition Switch.
Measure continuity between terminal 1 and 2 of clutch switch connector (Component side).
1st gear recongnition switch ON | 1st gear recognition switch OFF |
Continuity (Below 1Ω) | No continuity (∞ Ω) |
Is the measured resistance within specifications ?
YES
▶ Substitute with a known-good ECM and check for proper operation.
If the problem is corrected, replace ECM and then go to "Verification of Vehicle Repair" procedure.
NO
▶ Substitute with a known-good 1st gear recognition switch and check for proper operation.
If the problem is corrected, replace 1st gear recognition switch and then go to "Verification of Vehicle Repair" procedure.
