POWER MIRROR SWITCH TEST
Remove power mirror switch. Check resistance or for continuity between specified switch terminals. (Scheme 8)or (Scheme 9). Refer to appropriate POWER MIRROR SWITCH CONTINUITY SPECIFICATIONS or POWER MIRROR SWITCH RESISTANCE TEST table. If continuity or resistance is not as specified, replace switch.
Scheme 8
Scheme 8: POWER MIRROR SWITCH CONTINUITY
Scheme 9
POWER MIRROR SWITCH CONTINUITY TEST (ES300)
| Switch Position | Terminals |
|---|
| Left Switch |
| Off (Neutral) | (1) |
| Up | 3 & 4; 7 & 8 |
| Down | 4 & 7; 3 & 8 |
| Left | 4 & 9; 7 & 8 |
| Right | 4 & 7; 8 & 9 |
| Right Switch |
| Off (Neutral) | (1) |
| Up | 1, 7 & 8; 2 & 4 |
| Down | 1, 2 & 8; 4 & 7 |
| Left | 1, 7 & 8; 4 & 10 |
| Right | 1, 8 & 10; 4 & 7 |
| (1) Continuity should not exist between any terminals. |
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY TEST (ES300)
POWER MIRROR SWITCH RESISTANCE TEST (GS300, GS400 & LS400)
| Switch Position | Terminals No. | Resistance (Ohms) |
|---|
| Left Switch | 8 & 9 | 100 |
| Right Switch | 8 & 9 | 0 |
| Up | 7 & 9 | About 100 |
| Right | 7 & 9 | 250 |
| Down | 7 & 9 | 470 |
| Left | 7 & 9 | 800 |
POWER MIRROR SWITCH RESISTANCE TEST (GS300, GS400 & LS400)
POWER MIRROR SWITCH CONTINUITY TEST (SC300 & SC400)
| Switch Position | Terminals No. |
|---|
| Left Switch |
| Off (Neutral) | (1) |
| Up | 3 & 12; 8 & 11 |
| Down | 3 & 8; 11 & 12 |
| Left | 2 & 12; 8 & 11 |
| Right | 2 & 8; 11 & 12 |
| Right Switch |
| Off (Neutral) | (1) |
| Up | 8 & 11; 10 & 12 |
| Down | 8 & 10; 11 & 12 |
| Left | 8 & 11; 9 & 12 |
| Right | 8 & 9; 11 & 12 |
| (1) Continuity should not exist between any terminals. |
| (1) | Continuity should not exist between any terminals. |
POWER MIRROR SWITCH CONTINUITY TEST (SC300 & SC400)
POWER MIRROR ECU CIRCUIT TEST (SC300 & SC400)
- Remove power mirror ECU, located under left side of dash, near steering column. Disconnect harness connectors from power mirror ECU. Check for continuity between specified terminals. See «POWER MIRROR ECU CONTINUITY TEST»(ref-96833-S38820848642001041900000) table. (Scheme 10) If continuity does not exist, repair wiring or component as necessary.
- If continuity exists, reconnect harness connectors. Check voltage between ground and specified terminals. See «POWER MIRROR ECU VOLTAGE TEST»(ref-96833-S38820848642001041900000) table. If voltage is not as specified, check wiring harness and components as necessary. If wiring harness and components are okay, replace power mirror ECU.
| Continuity | Terminals |
|---|
| Always | A1 & A2; A1 & A3; A8 & A10; A9 & A10; A11 & Ground; A12 & A13; A16 & (1) |
| Left Switch |
| Up | B3 & B6 |
| Down | B1 & B6 |
| Left | B3 & B5 |
| Right | B1 & B5 |
| Right Switch |
| Up | B2 & B3 |
| Down | B1 & B2 |
| Left | B3 & B4 |
| Right | B1 & B4 |
| (1) Continuity should exist between terminal A16 of power mirror ECU and terminals No. 1 and 18 of tilt and telescoping ECU harness connector. (Scheme 11) |
| (1) | Continuity should exist between terminal A16 of power mirror ECU and terminals No. 1 and 18 of tilt and telescoping ECU harness connector. (Scheme 11) |
POWER MIRROR ECU CONTINUITY TEST
| Terminal (1) | Condition | Volts |
|---|
| A1 | Right Mirror, Left | Battery |
| A2 | Right Mirror, Up | Battery |
| A3 | Right Mirror, Right Or Down | Battery |
| A5 | Right Mirror, Left | (2) 0.0-0.9 |
| A5 | Right Mirror, Right | (2) 2.8-5.0 |
| A6 | Right Mirror, Down | (2) 2.8-5.0 |
| A6 | Right Mirror, Up | (2) 0.0-0.9 |
| A8 | Left Mirror, Right | Battery |
| A9 | Left Mirror, Up | Battery |
| A10 | Left Mirror, Down Or Left | Battery |
| A13 | Either Mirror, Except Off | About 5.0 |
| A14 | Left Mirror, Left | (2) 2.8-5.0 |
| A14 | Left Mirror, Right | (2) 0.0-0.9 |
| A15 | Left Mirror, Down | (2) 2.8-5.0 |
| A15 | Left Mirror, Up | (2) 0.0-0.9 |
| B2 | Always | About 5.0 |
| B4 | Always | About 5.0 |
| B5 | Always | About 5.0 |
| B6 | Always | About 5.0 |
| (1) Tested between specified terminal and ground. (2) As mirror moves, voltage should gradually change. |
| (1) | Tested between specified terminal and ground. |
| (2) | As mirror moves, voltage should gradually change. |
POWER MIRROR ECU VOLTAGE TEST
Scheme 10
Scheme 11
POWER MIRROR MOTOR TEST
Disconnect power mirror motor harness connector. Apply battery voltage between specified terminals (reverse polarity to move/operate motor in opposite direction). see scheme 5- see scheme 11. Also, see POWER MIRROR MOTOR TEST SPECIFICATIONS. Replace motor if it does not operate as specified.
