Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GW0N |
Model Year Start: 2020 |
Model: GR Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: POWER DISTRIBUTION: INTEGRATION RELAY: INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022] |
INSPECTION
PROCEDURE
1. INSPECT NO. 1 INTEGRATION RELAY (for Gasoline Model)
(a) IG1 NO. 3 RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1A-4 - 1A-3
|
Auxiliary battery voltage not applied between terminals 1A-1 and 1A-2
|
10 kΩ or higher
|
1A-4 - 1A-3
|
Auxiliary battery positive (+) → 1A-2
Auxiliary battery negative (-) → 1A-1
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(b) H-LP LH RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1A-5 - 1B-1
|
Auxiliary battery voltage not applied between terminals 1A-5 and 1B-2
|
10 kΩ or higher
|
1A-5 - 1B-1
|
Auxiliary battery positive (+) → 1A-5
Auxiliary battery negative (-) → 1B-2
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(c) EFI-MAIN RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1B-3 - 1B-4
|
Auxiliary battery voltage not applied between terminals 1B-6 and 1B-5
|
10 kΩ or higher
|
1B-3 - 1B-4
|
Auxiliary battery positive (+) → 1B-5
Auxiliary battery negative (-) → 1B-6
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(d) IG2 NO. 1 RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1A-10 - 1A-9
|
Auxiliary battery voltage not applied between terminals 1A-7 and 1A-8
|
10 kΩ or higher
|
1A-10 - 1A-9
|
Auxiliary battery positive (+) → 1A-7
Auxiliary battery negative (-) → 1A-8
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(e) H-LP RH RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1B-8 - 1A-12
|
Auxiliary battery voltage not applied between terminals 1B-8 and 1A-11
|
10 kΩ or higher
|
1B-8 - 1A-12
|
Auxiliary battery positive (+) → 1B-8
Auxiliary battery negative (-) → 1A-11
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(f) DIM RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
1B-9 - 1B-10
|
Auxiliary battery voltage not applied between terminals 1B-11 and 1B-12
|
10 kΩ or higher
|
1B-9 - 1B-10
|
Auxiliary battery positive (+) → 1B-11
Auxiliary battery negative (-) → 1B-12
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
2. INSPECT NO. 1 INTEGRATION RELAY (for HV Model)
(a) IG1 NO. 3 RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2A-4 - 2A-3
|
Auxiliary battery voltage not applied between terminals 2A-1 and 2A-2
|
10 kΩ or higher
|
2A-4 - 2A-3
|
Auxiliary battery positive (+) → 2A-2
Auxiliary battery negative (-) → 2A-1
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(b) H-LP LH RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2A-5 - 2B-1
|
Auxiliary battery voltage not applied between terminals 2A-5 and 2B-2
|
10 kΩ or higher
|
2A-5 - 2B-1
|
Auxiliary battery positive (+) → 2A-5
Auxiliary battery negative (-) → 2B-2
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(c) EFI-MAIN RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2B-3 - 2B-4
|
Auxiliary battery voltage not applied between terminals 2B-6 and 2B-5
|
10 kΩ or higher
|
2B-3 - 2B-4
|
Auxiliary battery positive (+) → 2B-6
Auxiliary battery negative (-) → 2B-5
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(d) IG2 NO. 1 RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2A-10 - 2A-9
|
Auxiliary battery voltage not applied between terminals 2A-7 and 2A-8
|
10 kΩ or higher
|
2A-10 - 2A-9
|
Auxiliary battery positive (+) → 2A-7
Auxiliary battery negative (-) → 2A-8
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(e) H-LP RH RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2B-8 - 2A-12
|
Auxiliary battery voltage not applied between terminals 2B-8 and 2A-11
|
10 kΩ or higher
|
2B-8 - 2A-12
|
Auxiliary battery positive (+) → 2B-8
Auxiliary battery negative (-) → 2A-11
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
(f) DIM RELAY:
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
2B-9 - 2B-10
|
Auxiliary battery voltage not applied between terminals 2B-11 and 2B-12
|
10 kΩ or higher
|
2B-9 - 2B-10
|
Auxiliary battery positive (+) → 2B-11
Auxiliary battery negative (-) → 2B-12
|
Below 1 Ω
|
If the result is not as specified, replace the No. 1 integration relay.
|
|
*a
|
Component without harness connected
(No. 1 Integration Relay)
|
|
|
|