Reminder System (MICU) Input Test

1.Turn the ignition switch OFF.

2.Remove the left kick panel.

3.Disconnect the driver's under-dash fuse/relay box connectors E, F, R, and S.

NOTE: All connector views are wire side of female terminals.

 

4.Inspect the connector and socket terminals to be sure they are all making good contact.

  • If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
  • If the terminals look OK, go to 5.

5.With the under-dash fuse/relay box connectors and MICU connectors still disconnected, make these input tests at the connector.

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, go to 6.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
E15
(A/T) 
BRN Under all conditions Connect battery power to the E15 terminal:
The back-up lights should come on. 
  • Poor ground (G701)
  • Blown bulb
  • An open in the wire
 

6.Reconnect the under-dash fuse/relay box connectors and MICU connectors, then make these input tests at the connector.

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box assembly.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 
E37 GRN Driver's door open Check for voltage to ground:
There should be less than 0.5 V. 
  • Faulty driver's door switch
  • An open in the wire
 
Driver's door closed Check for voltage to ground:
There should be 5 V or more. 
  • Faulty driver's door switch
  • Short to ground
 
F9
(A/T) 
PUR Transmission range switch in R Check for voltage to ground:
There should be less than 0.5 V. 
  • Poor ground (G101)
  • Faulty transmission range switch
  • An open in the wire
 
Transmission range switch in any other position than R Check for voltage to ground:
There should be 5 V or more. 
  • Faulty transmission range switch
  • Short to ground
 
R6 PNK Ignition key inserted into the ignition switch Check for voltage to ground:
There should be less than 0.5 V. 
  • Poor ground (G504)
  • Faulty ignition key switch
  • An open in the wire
 
Ignition switch OFF and ignition key removed from the ignition switch Check for voltage to ground:
There should be 5 V or more. 
  • Faulty ignition key switch
  • Short to ground
 
S1
·
S5 
ORN Combination light switch OFF Check for voltage between S1 and S5 terminals:
There should be less than 0.5 V. 
  • Faulty combination light switch
  • An open in the wire
 
Combination light switch in any other position than OFF Check for voltage between S1 and S5 terminals:
There should be 5 V or more. 
  • Faulty combination light switch
  • Short to ground
 
S11
·
S5 
PNK Combination light switch (Headlight position) ON Check for voltage between S11 and S5 terminals:
There should be less than 0.5 V. 
  • Faulty combination light switch
  • An open in the wire
 
Combination light switch OFF Check for voltage between S11 and S5 terminals:
There should be 5 V or more. 
  • Faulty combination light switch
  • Short to ground
 
S13
·
S5 
GRY Combination light switch (SMALL position) ON Check for voltage between S13 and S5 terminals:
There should be less than 0.5 V. 
  • Faulty combination light switch
  • An open in the wire
 
Combination light switch OFF Check for voltage between S13 and S5 terminals:
There should be 5 V or more. 
  • Faulty combination light switch
  • Short to ground