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STEP
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INSPECTION
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ACTION
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1
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INSPECT TRANSMITTER BATTERY INSTALLATION AND TYPE
• Visually inspect the transmitter battery.
• Are the below items correct?
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- Transmitter battery installation (correct polarity)
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- Battery type (CR2025)
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Yes
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Go to the next step.
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No
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Install the transmitter battery properly or replace with the specified transmitter battery (CR2025), then go to Step 11.
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2
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INSPECT TRANSMITTER BATTERY TERMINALS FOR RUST AND POOR CONNECTION
• Visually inspect the transmitter.
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- Is there rust on the transmitter battery terminals (positive or negative)?
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- Is there poor connection between the terminals and battery?
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Yes
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Replace the transmitter battery or repair the transmitter battery terminal, then go to Step 11.
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No
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Go to the next step.
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3
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INSPECT TRANSMITTER BATTERY
• Inspect the transmitter battery.
• Is the battery voltage normal?
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Yes
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Go to the next step.
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No
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Replace the transmitter battery, then go to Step 11.
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4
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INSPECT IF MALFUNCTION IS IN TRANSMITTER BATTERY OR ELSEWHERE
• Replace with a transmitter battery known to be good.
• Does the keyless entry system operate properly?
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Yes
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Replace the transmitter battery, then go to Step 11.
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No
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Go to the next step.
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5
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INSPECT IF MALFUNCTION IS IN TRANSMITTER OR PJB
• Reprogram the transmitter ID code using another known good transmitter.
• Does the keyless entry system operate properly?
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Yes
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Replace the transmitter and reprogram the transmitter ID code, then go to Step 11.
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No
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Go to the next step.
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6
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INSPECT POWER SUPPLY FUSE
• Is the keyless control module power supply fuse normal?
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Yes
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Go to the next step.
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No
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Install an appropriate amperage fuse, then go to Step 11.
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7
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN FUSE BLOCK AND KEYLESS CONTROL MODULE) OR ELSEWHERE
• Measure the voltage at the following keyless control module terminal:
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- Power supply signal (terminal A)
• Is the voltage B+?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the fuse block and keyless control module, then go to Step 11.
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8
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS CONTROL MODULE AND GROUND) OR ELSEWHERE
• Is there continuity between keyless control module terminal E and ground?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the keyless control module and ground, then go to Step 11.
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9
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS CONTROL MODULE AND PJB) OR ELSEWHERE
• Disconnect the keyless control module connector and PJB connector.
• Is there continuity between the following terminals?
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- J-04-F (PJB connector)-C (keyless control module connector)
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the keyless control module and PJB, then go to Step 11.
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10
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (NO CONTINUITY BETWEEN KEYLESS CONTROL MODULE AND PJB) OR PJB
• Measure the voltage at PJB terminal C.
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- When transmitter operated:
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• Any transmitter button is operated without key in steering lock (key reminder switch off): 5 V
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• Key is in steering lock (key reminder switch on): Below 0.5 V
• Is the voltage normal?
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Yes
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Replace the PJB, then go to the next step.
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No
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Replace the keyless control module, then go to the next step.
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11
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REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR
• Does the keyless entry system operate properly?
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Yes
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Troubleshooting completed.
Explain repairs to the customer.
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No
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Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
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